Metroid Prime 2: Echoes Questions

Im stuck and I really need help.im at the part where these two new areas open and they are both elevators but I can't get two them because they are blocked by two doors one of them is purple with dots around and I don't know how two open that and the other is a yelleo door that I need a super missle for but I don't know how two get any of those plzzzzzzzz help

Date of Question: Oct 7th 2007 | Question ID: 97864

The Super Missiles open the green doors, the Power Bombs open the yellow doors and the Seeker Missiles open the purple doors.
Once you have the Super Missiles, then you can get the the Seeker Launcher, but you won't be able to until you get to the Torvus Bog. If you aren't there yet, then don't worry about this yet and come back later.
I will tell you how to get it though, so you know for later:
Make your way back to the Transport to Torvus Bog in the Temple Grounds and go through the Green Door to the Meeting Grounds...
Here - Boost Ball up the Half Pipe and roll through the lengthy tunnel...
In the Service Access portion of the path - after the second rocky portion - you're going to need to Boost over some blocks...
Next - you'll enter the Path of Honour room - just keep going...
Now - you're in the Hall of Honoured Dead - get out of Morph Ball and you'll find yourself in a large room...
Scan the Spinner and then you're going to need to Boost in each Spinner to make the floor line up (this may take some time)...
This will remove the energy field surrounding the Seeker Launcher - now go get it...
You'll need to use it to get out of this room - it works by holding the Y-Button and using the R-Button to lock on to the 5 targets...