The install doc page is pretty long but when it was all said and done, it was pretty much the same process as the 'famous 5 minute install' and others. For a lot of people it will be just a few familiar steps. Download b2evolution, unzip, upload to server, create db, run install script. I wonder something could be added to the top of the page like;
"If you've installed other php/CMS scripts on a web hosting account before, you might be able to start with Step 5.4 below" (or maybe 5.2) Could be an anchor link.
on this page http://b2evolution.net/man/installation-guide
Not a big deal but it would add convenience and speed things up. Possibly a few questions at the top to find out what experience people have and those could be links or anchor links to types of installs and/or steps in the installation process and then if you could track what links are clicked most, you might get some valuable input on who's using b2evo.