That's really strange. Fancy shooting me a PM with your login and I'll take a quick look? No promises though... http://forums.digitalpoint.com/showgroups.php
Whats Your Permalink Structure? Copy paste it Here!! I thought you missed some Core Files, But now, I doubt it is the permalinks ~ExP~
Okay, I was able to login to bigmodo's Wordpress Admin area and create two test posts without any problems at all. There were no 404 errors and both posts appeared exactly as they were supposed to. So it appears to be something on bigmodo's end. What do you guys think? Cache? :/