Hi,
I've just been thru that..... PBP2.60 runs fine on Win7 64bit, I haven't tried 2.50 or 2.47. MicroCodeStudioPro also runs on Win7 64bit but depending on the version you initially install you may need to do some tweaks to get it updated and running properly. See this thread for more details about it. Also see these notes on meLabs site.

Can't say anything about the USB programmer software, I don't have one

/Henrik.