Where are the fuses for power seats on olds 1998?

On the GM's that I am familiar with the fuse box is underneath the dashboard to the left of the brake pedal. It usually has a black cover with 2 finger-sized tabs. gently squeeze these toward each other (unless the cover says otherwise) and it should pull right off. If you have the owners manual it will also give you this information plus exactly here the fuse you are look for is, how many amps it is and what size it is. If you don't have the manual, some GM's abbreviate what the various fuses are for and what amps they are right on the fuse block.