Let me get right to the point: At present CMSMS isn't capable of producing static HTML (that is why you posted in feature requests, I know *gg*) but there might be a workaround solution which works almost perfectly. Came across this solution while ripping a website onto CD-ROM ...
1. Install CMSMS with Clean-URLs
2. Style you site and enter content
If you have everything in place and Clean-URLs working, simply do the following:
3. Download
HTTrack Website Copier
4. Run it
5. Enter your URL
6. Let it grab all of your pages
There you go - a static version of your dynamic created page. No code-modifications, all images in place, all CSS grabbed. Now you only need to put it somewhere for example via FTP.
Okay, I must admit it's not like having it built into CMSMS but it doesn't take too long to do this and updating existing copies is easy.
Regards,
Nils