I love it when I can respond to one of my own posts with more information and positive (somewhat) results :-)
If you go to the translated post in the link above, and then click on the referenced script, you are going to get a script that has had some weird google translate stuff done to it. So, you don't want to use that translated script, you want to use the original script - and here is the link to that:
http://rubenwoudsma.nl/wp-content/uploads/2010/05/websitebaker_export_script.txt
Also, as one of the commenters in that other post indicated, you do need to make a couple changes to the XML that is output by the script. I'll reiterate those changes here:
The very first line in the XML file needs to be changed to:
<? Xml version = "1.0" encoding = "UTF-8"?>
Then, right below the line:
<language>...</language>
You must add this:
<wp:wxr_version>1.1</wp:wxr_version>
Otherwise you will get a WXR error warning when you try to import.
I'm only in the preliminary stages of testing this out. But, the import was successful. It imported a lot of content, got the page names right, and inserted the pages in the correct parent/child hierarchy. The nav menus will need some tweaking, and there appears to be a bit of extraneous characters here and there, but compared to a full on manual rebuild, this is looking very promising.
Hope that helps anyone else trying to go from Website Baker to WordPress.
I am working with these versions:
Website Baker: 2.6.7
WordPress 3.5