I just installed Windows 7 on my laptop ( I was coming from Vista). For some reason, I could not do an "upgrade" installation where Windows 7 just reloaded the OS, looked at the registry, then everything worked. I had to do a hard drive wipe and new installation of the OS, and then reinstall of all my software. It did it automatically and away I went. Don't forget that if you have to do it with the wipe and full install, you need to reload ALL your drivers.
As I was adding the software back on to the laptop, I downloaded and installed the latest version of EFILive. The drivers did not automatically install on the new platform. I had to reload them from the CD using the driver installation application. I went to Start>Control Panel>View Devices and Printers then clicked on the "Unspecified Devices" icon, it said "EFILive Flashscan V2". I selected the Hardware Tab, then clicked on Properties. On the General tab, I think I clicked on "Change Settings" and got the driver selection method screen and clicked on "Browse my computer for driver software", directed the screen to the Drivers/FlashScan/Win-2K-XP-Vista directory and clicked on Next. At that point the drivers loaded and everything seems to work. I have not had a chance to hook the laptop to my truck and verify, but the V2 gives me the standard 4 lines with the F keys, and I can open both the Tune and Scan tools without the error message that states the drivers are not loaded.
It was not too big a deal, but I wanted folks to know that the drivers did not install just by plugging in the USB cable to the laptop.
FWIW, the hassle of the new OS is worth it. I like the new OS much better than Vista.