Hi its me again!  

I saw how to change them..but where can I get new buttons to change them out? (like the post reply button or new topic button)

You could create your own buttons using Photoshop Pro. Or I guess you could look for images on the internet. Try this link:

http://www.google.ca/search?q=clipart


If you want to customise text, this allows you to do it without opening Photoshop Pro:

http://www.coder.com/creations/banner/banner-form.pl.cgi


To host your buttons and allow hotlinking, sign up to one of these websites:

http://www.photobucket.com/
http://imageshack.us/

Thanks so much!!!