SWFAddress SEO example: problem with expressinstall.

Hi there!
I have a tricky problem. I use for my backend the SWFAddress SEO solution that is based upon php & that can be found on Asual’s website. But I can't make this work with expressinstall - or I should probably say that expressinstall gives me problems further down the line. It detects flashversion & if the user has an older version they get the upgrade message. If the user clicks no for upgrade they get the alternative content & everything is fine. The problem starts when you try to navigate the alternative content. Then everything on screen dissipears..:confused: The html content gets updated (if you look in the source code you can se this) but it's not visible.
If you choose to ctrl+a & then choose to show source code for the selection you can see that the expressinstall is doing some sort of redirection & sets the visibility property of the div for alternative content to hidden. :confused:
I wonder if anyone out there has any idea of what is happening here. To reproduce this though you need to have a flashplayer plugin older than 9.0.124 in your browser or if you have any sort of flashswitch plugin for your browser set it to an older version than that. I use SWFObject 2.1, SWFfit 2.1 & SWFAddress 2.4...
You can see my testpage here:
www.widecircle.se/lab/martinawebb

All the best, Niklas