I am busy trying to install my first Linux moodle server. (It has taken me a day so far. The MacOS X version just worked in 20 minutes. Sigh.)
Anyway - I am currently stuck at the module self config stage. I can't show you my server because it is not on the public Internet, but Google tells me that these people have exactly the same problem:
The symptoms you see here are the duplicate tables from a second attempt to initialize. What is really important is the first attempt. The page appears to die with no Continue button and no closure of body and html tags etc.. I've attached both the first and subsequent failure files.