I had a wee hack in the installer because it was saying that MySQL v 5.0.18 couldn't be used and I commented out some lines in checkdatabase()
After a few refreshes as I sorted out other permissions problems I've got
If you receive a fatal error, refresh this page to continue the installation
# Creating 'assets' folder...
# Creating 'mysite/_config.php'...
# Creating '.htaccess' file...
# Building database schema...
Not A Valid Entry Point
I cannot see this phrase in the SilverStripe source, so I think something else is interferring. Google shows that SugarCRM has this error from time to time, so perhaps you've got the two programs installed in the same folder and this is causing a conflict?
Via IRC I worked with SiggySS_working and identified that Silverstripe was clashing with an existing installation of SugarCRM - it's on a subdomain but practically that is just a subfolder on the server.
Silverstripe should be able to accomodate this scenario... I'm not sure quite how this clash happens, I haven't seen anything like it before.
I've moved the files to a new folder and that's working fine. Now I just need .htaccess to grab the right files.