Please can you give me advice how can I go to:navel rock,brith island,ilex..

Well you need a action replay or go to a nintendo event (they are all over the county or somthing like that ) you could go to a toysrus thing and I hear they can get you those pokemon

You can't get to ilex forest or get celebi in firered, you can only gat celebi from the Pokemon collesseum japanese bonus disk if you prerordered it for gamecube and Trade it to your game and you can't get to navel rock and Birth Island by nintendo event anymore because theyre focusing on diamond and pearl nintendo events so you can only get there by AR codes

Dude... I only used 3 timer balls, 23 greatballs and 4 ultraballs to catch Suicune!!!!!!! IN this order my Pokemon were 1-lv49 golbat, 2-lv49 wobbufetts, 1-lv45 jynx(zynx), 1-lv50 golduck and 1-lv50 fearow. I first used golbat's mean look, lowered down suicune's hp to 1 in the red zone, then used 23 gratballs then 2 timerballs then 2ultraballs then 1 timerball then 2 more ultraballs and caucht it (reccomended timer ball-30, great balls-45 and ultra balls-100).