There are several threads about updating php versions.
http://www.webassist.com/forums/posts.php?id=46999
http://www.webassist.com/forums/posts.php?id=46828
Two ways to find out what php version you are using:
1) Use cPanel and look for MultiPHP Manager. That will tell you the current version. To change, select the latest one (after you have prepped your WA code!)
2) OR create a new php file with this code:
<?php phpinfo(); ?>
- name it info.php or similar & upload
- go to that page in browser and it will show what version your server is using on that domain
Any WA files using mysql AND not using mysqli have to be converted. Download mysqli extension. http://www.webassist.com/product/mysqli
Note: Sometimes even after conversion, you may still have an older connection to mysql. This line should be deleted or you'll get a blank page.