No. It's the same driver.
Actually, it might get it working... (And I stress might)
Piru's right, it won't change the PCMCIA / Accelerator issue, but if you have your card set to 4M and it still conflicts, then that's probably not your problem.
Might be more likely a config/software issue.
And even installing the same things differently can make a difference..
I wouldn't bank on it "fixing" your issue, but if you are at 4M with your Accel and it still isn't working, it feels more like software, or your WiFi card isn't working..
desiv