Thanks so much for this guide - it really made my installation easy.
One step I found I was able to skip was the first dongle (pins 1-6 and 2-12) - my B130 worked fine from start to finish with only the pin-6-to-pin-12 dongle described in part 3.
To save a few steps for others with the Dell 1370 Wireless card, I've attached two pre-patched files:
1. Unzip both files
2. Replace your current IO80211Family.kext in /System/Library/Extensions/ with this patched IO80211Family.kext
3. Move NetworkInterfaces.plist to /Library/Preferences/SystemConfiguration/
4. Repair disk permissions using Disk Utility
Thanks again, microsoft whiz