Install went well, but viewing posts doesn’t work

Welp…I installed WP, everything went smoothly…or so I thought. Am able to type posts, but when publishing/viewing instead of seeing my post I see the directory tree of my hosting account (see http://www.nitsuj.com/?p=4). Not sure what’s up as I’m not the most html savvy guy, after playing with it for awhile figured I’d ask the experts. Is there something obvious I’m missing??

Thx.