Hi there!

UltiDev Cassini does not support FrontPage extensions, but to publish the site to Cassini you could copy site files using FTP if your site is on the remote machine, or just copy files if site folder is accessible as a network shared folder. If your site still doesn't look right then it's either becasue your site relies on FP Extensions, or becasue some URLs are off - possibly becasue under Cassini your site is in the root folder. We can probably tell which one it is if you send us a link to- or a screenshot of your site.

All the best,
UltiDev Team.