Don't have a good online study guide but I do have 3 sets of FSI books for it. Looking at the link on your msg I would not use much of that info. There are some huge mistakes on that page. Sounds like he was confusing alot of G3 stuff with the 4.
That's great info, mike1. The "classic" GIV is quite mature now and Bob Hare's GIV notes are still very much applicable. I share them with every new GIV pilot I come across. But until you've been through initial, a lot of that info won't make much sense.
ksna- If you didn't get the manuals from Partyfoul, send me a pm with your contact info. I've got a few manuals I can send you.