A few observations:
- trying to install FSUIPC4 with only FS9 installed will not work - the installer won't even try.
- Give 3rd Party developers some time to make there software compatable. The software I have written now works with FSX with no modifications thanks to FSUIPC4. Other software, especially those with custom gauges will take some time to convert.
- Anytning you buy, print out the receipt with the reg codes.
- If you log into SimMarket, click on "Your Account" link, log on,
then go to "Your Order Details & Downloads", you'll be able to get your keys there.
- It is pretty obvious to me what versions FSUIPC is for which versions of Flight Simulator. If you're not sure, why not try it out before paying for it? (see my first point).
Cheers,
Matthew.