I burned the BIOS chip of my mobo.

The system is an IBM Aptiva E series 765 (650MHZ Athlon SlotA-type CPU)
model type 2174-765
On the BIOS chip is a label that says: V8.2RO1-V0 and copyright by Acer Inc. 1999
The part number on the chip itself is AM29F002BT-90JC and it's manufactured by AMD.
I spent hours already calling tech-support of Acer and IBM and the mobo-manufacturer but nobody could help me so far.
Does anybody have an idea who i can contact to get this BIOS chip?
The chip is a PLCC-type and sits in a socket.
I appreciate your help/ideas.