Aruba doesn't have nor create any hacking or pen-test programs, mostly because from an IA/Security standpoint, they wouldn't hold up to scrutiny (a vendor creating their own pen test tools to test their own security posture doesn't usually go over well heh).
Backtrack is the best distro for a laptop, but yes it does require a wireless card supported by the distro. Your other option is to buy a WiFi Pineapple Mark V (https://hakshop.myshopify.com/products/wifi-pineapple). This can do a number of pen test activities from the gui of the unit, ad is pretty effective. Esp with the integrated battery. Note you can also do a good deal of testing with just a regular off the shelf wireless router (rogue testing, IP and SSID spoofing, etc).