I only connect mobile HD using the APR. So can't help you directly. But a few things you can check.
1. Power adapter - APR has to couple with the 90W adapter.
2. APR has 4 USB ports. Have you tried all 4 of them? I remember...
I accidental got to the eSupport web site and found their concept is quite intriguing. They are offering BIOS update for existing MB and even laptop.
Has anyone tried their BIOS? Does it provide new options compare with original one?
Intel 3945 uses PCI Express, it si not compatible.
Both 2200 and 2915 work for you. But what kind of AP do you have? If your AP only support 802.11b and 802.11g, then 2915 is overkill for you. Because 2915 support 802.11...