There you go, I had a little error in the sitemaps that iMap produces! This made it impossible for Google to read the sitemap. There error was this little thing here:
<urlset xmlns="http://www.google.com/schemas/sitemap/0.9">
It shouldn’t be 0.9 but 0.84. Well I changed it now and the new sitemaps with iMap 1.3 should work.
Thanks Steve for pointing this bug out to me!
Please download this update! All those who have purchased iMap should have recieved a e-mail with a download link! To ensure that you will get on Google, make sure you have iMap 1.3!!!
If you did not recieve a download e-mail, then contact me right away and tell me. Paste the transaction ID into the e-mail so I can verify that you have bought iMap.
Sorry for these fast updates here 
Just bought iMap. I have multiple websites on my .mac account, some published with iWeb others published to a folder then uploaded. I understand I need to create a Sitemap for each and every time I modify the sites I need to redo the process.
My question is, is there anything I need to do to an iWeb site prior to making a Sitemap to make them search engine friendly?
I read somewhere that metatags are less important then header content.
Is this something you can build into iWeb Enhancer to optimise iWeb site?