WordPress MU

hey there all,
I've decided to upgrade to RC2 and I'm having a ton of errors.
I replaced ALL files and as it can be seen the site is fine.
The only files I did not replace were the themes.

Now, if you go to http://www.iktib.com you will notice that all of the titles show as Iktib in the center.

Why is this?

I also went to admin and did the Update however I get the following error.

| Warning: fopen(http://momuzic.iktib.com/wp-admin/upgrade.php?step=1): failed to open stream: Permission denied in /home/animeoff/public_html/iktib/wp-admin/wpmu-upgrade-site.php on line 32

http://hjjhghhjg.iktib.com/

This shows up for ALL of the blogs...

Finally, when you click to sign up

http://iktib.com/wp-newblog.php

You get an error.

Can someone help me solve all of this *cries*

I need to fix this all asap.

I've solved the sign in page problem by removing hashcash plugin.
I do not even know where that came from!

However the other problems still exist

and when you actually TRY to sign up you get the following

Fatal error: Call to undefined function: createblog() in /home/animeoff/public_html/iktib/wp-newblog.php on line 207

I'm scouring the sections now, but any help is appreciated.

I can be contacted on amnesiak (at) gmail (dot) com

I don't have alot of money but I can offer 10-20 pounds if someone can help me sort out all of the problems.

I set up iktib for my friends and I feel bad that their blogs are now disabled.

amnesiak wp-newblogs.php doesnt exist no more. It's wp-signup.php now. :)

You might want to change your links.

thanks for pointing that out, now I have a new issue.
after you sign up, people get the following

iktib.comBASEtestblog3/ Is Yours

two points
1) shouldnt it be testblog3.iktib.com?
and
2) I've changed the htaccess to / rather than BASE/ so why is it still showing base?

I solve one problem, 10 other appear.

Check your wp-config.php file. Line 8 should read:
$base = '/';