Both URLs are working for me so either you’ve fixed it or you likely need to clear your browser cache/cookies.
Quote from: paulp at Jan 14, 2010, 03:55 PM
I might be wrong though 
Or not.
Do you have an index.html in the root folder with the index.php? If so, remove that (index.html) and see if it helps.
Do you have Friendly URLs turned on in Tools | Configuration? If so, did you rename ht.access to .htaccess?
(Breezer’s idea is a better bet).