mechmouse: FAST seamed happy enough when our installs exceeded our licenses, though we did have a licensing server to ensure compliance.
Yea, this might be your case. Maybe they don't have too many problems in UK, so they can be a little more relaxed. Over here, in Romania, those kind of controls, on software licences, are pretty rare, but when they happen, it's pretty much impossible to get out without fine. They are conducted by police.
They find an .mp3, an software like WinRAR, with "expired" licence. This thing, having less licenses than computers would be major offense for them. But there are many companies that use pirate software, so i understand their strictness.
And i said "fine" as it's the best case scenario. The punishment of using illegal software of any nature it's between penal fine and 4 years in prison and they also can close your company. So it's really nothing to play with. That's why i am usually pretty freaked out when i'm hearing about "personal use". In my mind, there is no way around it. Yea, as an simple citizen, you won't have any problems in sharing an game with your family. But for me, as i am firm too, a misinterpretation like that can cost me my business, as i use my personal computer at work too, for my firm.