Keep getting '404 Error' when trying to install MAS v1.3.3

[kyrctyn]

I might go to 1.3.4, but my friend and I didnt know if some "big" issues people have been having have been resolved yet. I might update it to see how it goes though. I honestly wanted to 1.3.4 because of feature updates, but my friend said we should try 1.3.3 first since we were new to it and php coding.

But I'll look up how to update and try it out

EDIT: Okay, I updated to 1.3.4, but found some issues.

1)My site hoster only had PHP 5.2.*

2)4 errors came up after upgrading. The last one I believe came from #1, but the other three spawned from upgrade.php.

Warning: constant() [function.constant]: Couldn't find constant DBHOST in /home/a7811586/public_html/install/upgrade.php on line 13
Warning: constant() [function.constant]: Couldn't find constant DBNAME in /home/a7811586/public_html/install/upgrade.php on line 13
Warning: constant() [function.constant]: Couldn't find constant PREFIX in /home/a7811586/public_html/install/upgrade.php on line 14

I cant tell if these are actual errors or from the 5.2.* PHP as well. But due to the PHP verion of the hosting being 5.2.*, I'll have to stick with 1.3.3 or lower

EDIT 2: Okay, so after deleting EVERYTHING from the server file and reinstalling 1.3.3, its working fine. But I need to ask, what do i put in the database info during installation?