Do you have SuSE Professional?
Dunno if gcc comes with SuSe personal.
If you have professional, please start Yast2, goto the software installation module, then filter on package groups (or similar phrase, i use the Dutch version
), goto 'development' and select the following packages in the list:
install those packages and whatever dependency suse comes up with.
If you don't have suse 9.0 professional, please checkout ftp.suse.com/pub/suse/i386/ for the proper packages.