Hi! Poke master here! Please answer most (possibly all) of these questions...

1.it's just something wrong when the creator of the game got a mess in programing the words, that won't ruined your game.
2.if you use a cheat device to pass through the trees.
3.that I don't know.
4.no. Ride a bike and ride it back and fort from verdaturf to mauville, I think thats the fastest way to hatch an egg.
5.you should plant a berry of course, plant one in a soil and if your lucky theres two more that will sprout.
6.you maybe able to go to the battle frontier.
7.if you give it good move sets, he should.
8.effort ribbons and hall of fame ribbons.(a girl in slateport will give your Pokemon an effort ribbon if it's stats are high.)
9.she won't say anything. But the tire thing.
10.you won't.
11.you could use any ball to catch latios. I caught it with a pokeball.
12.use your pokenav to see which gym or trainer want't to battle you again.
13.no.
14.yes acro and mach bike
15.i think so, since battle tower exist there.

1. It's probably a typo.
2. I don't know
3. The sale and berry master will eventually return.
4. I don't know
5. Try watering them, mine still grow
6. You get to go to the Battle Frontire and the new section in the safrai zone.
7. I don't know
8. Talk to the lady next to the energy dude in the market and she may give you an effort ribbon.
9. Doubt it
10. Rival will be in the lab. You can't battle him.
11. Use ultra balls?
12. I'm not sure but some of them still battle me.
13. I don't know. I don't know WHERE he is.
14. I don't know
15. I don't know

Hope I helped a bit!!
Sorry I can't answer them all...

A#1

1.) Yes, it is a mistake. It is a small mistake, but notable.

2.) They use the e-reader cards, I believe. Not entirely sure, though.

3.) They are random. Every month or something like that, it will change. Other shows include the vitamin guy in Slateport city selling pills half price, rare Pokemon sightings, and thats it.

4.) I think the spa thingy is a lie. Take a slugma (or 5 , if you can fit it), and put them in the party, along with the egg. For every slugma (or for that matter, any Pokemon with the ability magma armor or flame body), you cut the number of steps needed in half.

5.) Have you watered them? Is the internal battery dry? Is it maybe the berry glitch? If you haven't watered them, water them! If the internal battery is dead, no luck. If it's the berry glitch, you should know how to fix it.

6.) Steven is available for battling, the battle fronteir in emerald opens, you get to catch your Lati@s. Catch Rayquaza (in Ruby and Sapphire) or Groudon and Kyogre (Emerald). 7.) It works best as a toxi-trapper (using toxic and a trapping move, usually mean look) and baton passer, because it learns both a trapping move and baton pass (useful for leech seeding, other toxifying Pokemon, or perish song pokemon). Its horrible as an attacker, though.

8.) Beating the elite 4 (just beat the elite 4), Effort ribbon (max out your evs, given to you by that laady in slateport city).

9.) She will speak to you after you beat the elite 4 for the first time.

10.) After lilycove, never.

11.) Paralyze it and bring it down to 1 HP, then toss an ultra ball. Other than that, luck and hope are your best.

12.) I don't think so, can't be entirely sure though.

13.) He's on that ferry/ship between slateport and lilycove.

14.) There is the mach bike and the acro bike. The acro bike is for those pipe thingies (you can jump on the acro bike). The mach bike is to get over the fissures in buildings (sky pillar) and up the mudslides.

15.) I have no clue.

Hi there pokemaster, it's grand master here, and I'll answer as many questions as I can for you.
1. Your right about that point; Sotopolis doesn't have a space center, Mosdeep does. Perhaps it is a glitch, or maybe he's reffering to when you helped him in Sotopolis.
2. The dude with the trees blocking the door in his house? I'm pretty sure that it's the same in ruby and sapphire where there is a locked door in the lady's house. Apparently if you find and beat every single trainer in the game and it registers, then you go to the lady (or old man) and talk to them. They will say that a new trainer has arrived and that you should battle them, and they come through the mysterious door.
3. There is no order; random things like department store sales and the blend master happen once in a while.
4.The best way to hatch eggs is by having a Pokemon that has the ability of "flame body". This reduces the number of steps that you need to take to hatch eggs. Another way is if you have a match bike, and you try to go up slippery mud slopes but you fall down again. Keep on doing this by placing something heavy on your up button, then do what you want until the egg is hatched.
5. I'm sorry to say it but I think you need a berry update. This means that time has stopped on your game so berry plants no longer grow. This problem happened to me. But not to worry, what you need to do is ring up your closest nintendo store and ask them about the berry update. Then you send your game to them, they fix it, and then send it back. And as a bonus, they give you a shiny zigzagoon holding a liechi berry!
6. Not that I can remember
7. Umbreon is a pretty good dark type Pokemon, I love it too! I think it has good speed.
8. You can get a ribbon for your Pokemon being painted after it beats the master rank contest, your Pokemon gets a ribbon when you beat the Pokemon leage, you can get a ribbon for being a hard worker by talking to a lady in the slateport marketplace.
9. Not unless it's a special occasion such as at the beginning of the game and after you beat the champion.
10. I'm not sure
11. Of course you can catch latios with other balls then the master ball! The problem people have is just with it fleeing all the time. Try putting it to sleep or using a Pokemon that has the effect "mean look" or "arena trap" so that it can't get away. I know that I caught my latias with a premier ball.
12. Not all the trainers want to battle you again after you defeat them, but quite a few do. Just see if they want a battle on your pokenav. It's good when gym leaders want to battle again : )
13. Nope!
14. There is the mach bike (fast) and the acro bike (tricks), but no more than those two. You can swap them whenever you want just talk to Rydel in Mauville.
15. You can't clone Pokemon on Ruby, Sapphire or Emerald! What are you talking about, cloning on emerald? The only games that you can clone on are Silver, Gold, Red and Blue. If you've found a way to clone on Emerald, please share it with the rest of us.

Hope that I've helped.

EG:
15. You can clone on ruby, just trade I ditto from emerald and g to the eg hatery on route 6 and put in the Pokemon you want and a ditto