Hello Martin
1) You may just have a broken spring or it has come off. 4 bolts and 1 seatbelt light harness and the seats will come out. Turn it upsidedown and have a look.
2) The seats that are 100% compatible are:
1995-1999 Eagle Talon, Mitsubishi Eclipse
1995-2000 Chrysler Sebring (coupe only), Dodge Avenger
3) I dont have any seats myself, maybe someone else does but you can also check out
http://www.car-part.com/ they have parts you can search for at some junkyards.
Good Luck!
Anymore questions let me know,
James