installation files corrupted please help

BequiaBlog.com – Hi, I was messing around managing posts, the look of the page etc. in the dashboard for my online blog. I did this since a couple of days (I got many more hits since then so it wasnt entirely useless) when I noticed that the main page on BequiaBlog.com had a large heading stating the same exact bequiablog.com with a hyperlink to that same index page. In otherwords the link was of no use.

So I tried to find that hyperlink in the pages (lefthand, righthand, index) so that I could change it however did not succeed. Finaly and here comes the point, I ended up back in the bequiablog.com dashboard where I thought the options tab might make those changes. So I inserted http://www.theoldfort.com in one of the 3 lines stating hyperlink for that page. I thought it might work and that it would redirect anyone clicking on the bequiablog.com hyperlink on the page to our other page theoldfort.com page. But I was wrong.

Since I changed the address there everything got all messed up. Have a look again at bequiablog.com you will see what I mean. Also I can not log into
bequiablog.com/wp-admin to arrive in the dashboard as I did before to change those options back to how they originaly were.

If I insert bequiablog.com/wp-admin I am redirected to http://www.theoldfort.com/wp-login.php?redirect_to=%2Fwp-admin%2F. Thats has to do with the options tab in bequiablog.com dashboard where I inserted http://www.theoldfort.com.

I tried reinstalling etc and I didnt manage with my backup.

I would be grateful if any of you could help me.