[vortex] 3c905 irq & compile problems

[pyr0man1c]

hi!
i recently purchased two new harddrives, and decided that i wanted to 
install linux (debian dist) on the old one, an ibm deskstar 75gxp at 15gb. 
When trying this, i encountered two different problems with the 3c59x driver: 
first when i try to use the binary driver included in debian, it fails to 
access any other computer on the network. vortex-diag reports that no irq 
has been assigned to the card, and /proc/pci holds no entry for irq 11, the 
irq which the card uses in m$-windoze. i have tried switching pci sockets 
for the card, but it does not solve the problem. the 3c905b is the only 
pci card i have installed, but there are also an old soundblaster awe32 
isa soundcard, and an asus agp-v6800 geforce ddr agp graphics card. 

the second problem occurs when i try to compile the driver on another 
computer, using the same linux distro and kernel version. the make script 
reports it can't find the file 'modversions.h' in the kernel source tree. 
i mean what!?! i just downloaded the source from ftp.kernel.org?!? 

not sure if this is the right place to ask these questions, but i would 
certainly appreciate all help i can get! 

thanx, 
 olle gross

p.s. do you think removing the old isa soundcard would solve the problem?
d.s.