Phpnuke 7.0 con IIS

[morfy]

Ciao, ho appena installato Phpnuke 7.0 sul mio server ma mi trovo questi errori:
Notice: ob_end_clean(): failed to delete buffer. No buffer to delete. in C:\Siti\myopenvillage.com\mainfile.php on line 18

Notice: Undefined variable: forum_admin in C:\Siti\myopenvillage.com\mainfile.php on line 67

Notice: Undefined variable: inside_mod in C:\Siti\myopenvillage.com\mainfile.php on line 70

Notice: Undefined variable: inside_mod in C:\Siti\myopenvillage.com\db\db.php on line 44

Fatal error: Call to undefined function: message_die() in C:\Siti\myopenvillage.com\db\db.php on line 88

Qualcuno può aiutarmi?

Grazie