upgrade breaks apart my wp_post table

hi all,
i upgraded a wordpress installation as it was old installation from fantastico.
upgraded the installation from fantastico, upgrade link, it backed up everything, but broke non-english text.

I downloaded the latest available version uplupgrade.php
now i see the posts which are visible are ONE YEAR OLD.

and the upgrade has strange tables which contains the up-to-date posts.
tables
wp_posts shows posts upto last Aug2006
ww_posts has all the new posts but doesnt show up.

Renaming tables doesn’t helps.

any efforts would be a great help.

thanx,
ghpk