i already edited my CP but i got an error while uploading the file and i cannot see my signature too...please help me...just new here..:confused:

I don't see any sig attached to your username.

add on here:
http://wow.forums.thedruidsgrove.org/profile.php?do=editsignature

I limit avatar uploads to files of 100x100 and 18k in size. If your avatar doesn't fall within these specs it would fail on upload.