Export and Import Failed, Newer posts did not load

I uploaded my WordPress.com posts to my www.remarpro.com and guess what? My posts that I made since february are not there, neither my pages and tags from that date. I tried this 4 times. All four where failure, my first time, posts from frbruary were not there. I had to delete all my 500 posts 15 by 15 four times. You know how long it took me. Please give me some help here people. I NEED YOU!!! Anyways, I can add you as administrator in my blog, and make you administrator account at my self host.