JIC someone else runs across this

[replytomk3]

Because a client's host is PHP version 4, I have to use 1.6.8.

If someone installs SEO Tools and navigates to the page list in the backend, the following error will be displayed.

Notice: Only variables should be assigned by reference in /home/auraau/public_html/lib/xajax/xajax_core/xajaxPluginManager.inc.php on line 286