Hi,
I have same problem in PHPNUKE 7.9, I was instaling some module, it seems so easy so I didn't read readme file. Then I replace my index page with one in module (how stupid from my side) so after that couldn't access my website directly, because I get restricted message. I then find another 7.9 and replace index page, now all my center blocks are gone.... any sugestions to solve this problem?