Odd. hang on. (Can you send me the file you were uploading please)
Also, sounds like opera hates DICKBUTT. God dam, should have just sticked to normal website tech when I designed this u_u.
EDIT: On yet another note, I really should add a progress meter to the upload forms >_>.
EDIT EDIT: Just uploaded a bunch of !@#$% in opera, seems to work ok :S. Maybe your going over the file size limit on our server?