FrontPage support is still available through EasyApache, although there are some common issues that arise from time to time. The vast majority of FrontPage issues can be fixed by running
/scripts/initsuexec
If the above does not work, often times simply uninstalling and reinstalling FrontPage extensions for the problematic domain in question serves to fix the issue.
Finally, if that does not help you can check for errors at the FP administrative console at:
http://www.domain.tld/_vti_bin/_vti_adm/fpadmcgi.exe
This should give you more information regarding the source of the trouble and more idea about what needs to be done to fix it.
