You'll need to patch FC up to 1.12b, keeping in mind that there are various versions of 1.12b, choose the approriate one from the official Lockon website:
http://lockon.co.uk/index.php?end_pos=2539&scr=products. You'll need to register to download.
Starforce protection has to be upgraded each time you upgrade your OS, so you'll need a Windows 7 driver, found here:
http://www.star-force.com/support/drivers/ Some users have reported that Windows 7 installations of LOMAC only work using the default installation path c:\Program Files (x86)\... but I haven't had any problems installing to root directory with UAC turned off. You may need to set administrator rights for each program you run with lockon, like trackir, etc. Haven't had any problems at all with my installation.
there is a thread here that can answer your questions, as well:
http://simhq.com/forum/ubbthreads.php/topics/2885348/all/LOMAC_FC_Windows_7.htmlGood luck.