I managed to re-install the package, latest 2.1 build, again but now I am facing another problem. When I try to add something, category etc it only give me back a white browser screen with url www.valiantgame.com/administrator/index.php in the address bar in the browser???

Hi. A blank screen indicates an error. Please turn on error reporting and see what's the error.

trtied that, did not show me any error message