NEW TO PPCGEEKS! (And lost!)

[BrokenPsilence]

Hello All!

I was referred to this site by my frat brother.
I have a Cingular8525 and a Sprint/HTC Touch (the first one, not the pro or diamond).
I'm looking thru the site to see what I can download to make these phones better and more "cool" but I dont exactly understand the jargon. And i dont want to download anything that will mess my phones up.
Can someone briefly point me in the right direction or explain to me what to do or look for (or lookout for).
I have WM 6.1 on the touch already......

Hope someone can help me out....

THANKS