@elfpipe
It's rather confusing. Going from AEON site or AmiSphere it's hard to to find a log in page. All pages from links suggested are for new registrations. They've changed it around. I had logged in from Firefox but my log in was missing. I checked and it still had my details but doesn't fill in my log in any more.
Have you registered from a browser that recorded your log in? In case you have check this for log ins. If you have any log ins saved somewhere.
https://secure.a-eon.bizAs to AmiStore. Have you logged in from the store? Does it know your details? You need to make sure it's logged in from a button on the bottom left. It should tell you if you aren't. But I recall getting stuck on this myself. If it isn't logged in then pressing account button should ask for login. Generally logins start with an "as" and have an account number attached.
BTW what games? NovaBridge is for bridging old Warp3D games. So unless you are wanting to play some older Warp3D games you shouldn't need it.