Have you registered with AUGI? (Autodesk User Group International) I must admit that after an initial looksee I have mostly ignored their site for a while but it has great info on it. At the moment there is a series on ACA that may be helpful to some on Structural Members. Have a look down the left hand side for the older articles. It has something on ACA every issue (monthly). You do need to register to see much older articles but it's well worth it as there is lots of other gear that will be helpful. As well they have their own NG specicially for ACA as well as ACAD etc.
Check them out. Joining is FREE!
(Dang! I can't remember what password I used! :-)