Where is the fuel filter located? on 2001 Oldsmobile Silhouette

The van will start and then die. It is running very rough. I might be the fuel filter or the fuel pump. I figure I'll changed the cheaper one first to see if it will fix the problem.

2 answers
this is a picture showing the fuel filter,hope help.
http://chinasinoy.com/service/location-of-a-fuel-filter-68.html
I doubt it's a clogged fuel filter but for best performance they should be changed every 60K. How many miles are on the van? Is the check engine light on? First, remove a spark plug and then get back to me with the condition. Light brown, normal. Blackened and wet, bad. White, bad.