JackBook.Com got hacked

Guys,

just want to let you know that several hours ago i was struggling with my hacked blog.

after check everything up, i found these mess

1. the hacker add new entries on my table that used by the redirection plugin. (how could they access my MySQL Database? from wordpress?)

that entries make my homepage got redirected to another page.

*i think the hacker is pretty nice to redirect it to my another page, instead of another random site.

2. the hacker also edit one of my post. and until now, that post is un-editable.

what im trying to say is, that post used to have only 1 category, but now it has many categories. and i can’t remove those categories. every time i remove the categories and click the Save button, those categories just got back

*sorry for the bad english. until now i still have problem on removing that categories.

ok thank you guys.