Averatec 3700 WLAN driver won't install

One of my daughters has an old Averatec 3700 notebook that she asked me to do some work on. I wiped the HDD and reloaded XP, and everything works fine, except I cannot get the driver for the wireless LAN adaptor to install. The file I downloaded from several different sources is called ""3700_XP_WLAN_3.0.1.0.exe". Every time I try to install it, I get an error saying:

"Error 1305, Error reading from file C:\Docume~1\xxxxxx~1\locals~1\Temp\WZSEO.tmp\IEEE802.11abg Wireless LAN Software.msi. Verify that the file exists and that you can access it."

I have tried this .exe file from a few different sources and they all do this. I went to this location and saw that that .msi file is not there. I even went online and found this file and put it in the correct location during the install process and then I got a different error code saying:

"Internal error 2755, 1624, " and then it lists that .msi file.

I don't have alot more time to spend on this thing but she needs it. One other thing is that in the device manager under Other Devices, I get two "?" and "!" for Network Controller and PCI Simple Communications Device. The wireless adaptor isn't listed under network adaptors so I can only assume one of the marked entries is it. I read in another forum that the drivers for the chipset and CPU need to be installed first, which I tried, but it made no difference. Anyone got any ideas? I have reloaded the HDD on my Asus G73 a couple times and didn't have this much trouble.