grisswold
So I ges, installing joomla in an i-bay didnt solve my main problem.
You ask people for answers (in a previous thread if I recall correctly), but choose not to absorb the advice given.
Your blank page issues are probably to do with apache php settings or file permission/ownership issues as perviously advised.
You continue to blunder on thinking that if you try and install to somewhere else your problem will be magically solved. Sorry that's not likely.
I suggested you could work this out by simply installing the Joomla contrib referred to in the wiki and report back your results. The contrib should set up all the required settings etc, so it should work first time. Please do not change anything except basic domain related settings, in particular do not change file permissions or ownership as you have probably been doing the wrong thing so far.
Get that sorted out first and then worry about upgrading.
It should take all of 5 minutes to install and another 5 minutes to do basic configuration for your domain..
Please uninstall and remove all previously installed versions of Joomla and any custom templates etc you may have created, before installing the contrib.
You need to be willing to take advice if you want to resolve your problem.