Timothy,
Based on those file names, I assume you're using NetWeaver Application Server 7.02 Service Pack 6. I installed NetWeaver AS 7.03 on my machine (64 bit Windows 7) and followed the document I mentioned earlier. It worked for me. If you're able to log on at all (and you are) that's a good sign.
As for logon data, I've never heard of client 500 or user DEVELOPER for miniSAP. Try logging in with client 001, user BCUSER and password minisap.