Don't beat yourself up just yet. If your borad was on the compatibilty list it should work. I just got the 9500 today and my board wasn't on the list. I emailed Zalman and they said there are alot of boards not on the list. I was surprized to see how big the 9500 was. There was a ton of room from where the heatsink mates with the cpu. I'm not sure on the 7000, but try it. I've found the specs they give for clearance issues on the 9500 only comes into effect if something is sticking up higher that the mounting bracket for the cpu heatsink. Thats b/c the heatpipes on the Zalman rise up a that makes the cooling fins above anything in the general area of the cpu heatsink bracket thats fixed to your board. If that makes sense. I'll try to get some pics posted.
[size=1]Antec Case w/Antec TruePower 2.0 430w
DFI LanParty Pro875 rev. A
P4 3.0@ 3.31 w/Zalman CNPS9500LED w/AS5
Corsair XMS3200 1gb (2x512) @ 245 2.5,3,3,6
WD 150GB SATA
SoundBlaster Auidgy 4 w/ Logitech x530
EVGA Geforce 7600GS 438/435