SEF Advanced 6.0.2 + Joomla 1.0.15 + php 5.3.8

my IP upgraded php from 5.2 to 5.3.8 and SEF is dead now.

I have site back up but get loads of the following in the error log.
[15-Jan-2012 06:39:24] PHP Deprecated:  Function [obfuscated]() is deprecated in /public_html/components/com_sef/sef_func.php on line 0

I can't access any of the SEF Advance screens from admin. i get blank pages.

"PHP Deprecated" has nothing to do with this.
You probably just need to upgrade the ionCube loader: www.ioncube.com/loaders.php

thanks. that seems to have fixed the problem