Welcome Shop1,
1. Stand alone version on basic Windows 7 PC should work. (However, if you want to generate FM signals you'll need more than a basic sound card.)
2. You can indeed choose where you use your license. A license is meant for one person or one radio station (whichever is used up first). So if you want to use it for example both at home and at work, you can use a single license (and use it on VST plugins, Winamp plugins, stand alone version, Linux version, ...). However if you're going to operate a bunch of radio stations, you'll need a license for each station. (If you need many licenses, contact me for a discount

)
See this Google query for an (estimate of!!!) the price in Dollars:
http://www.google.nl/#hl=nl&biw=1920&bi ... 2c8d4c55d8
(Do you need the full version? You only need it if you're going to process for and/or broadcast on an FM station! Otherwise the 'basic' license suffices.)