We have always been able to connect to our site using standard ftp however, we've installed IPSwitch'd FTP_PRO 7.5 server with SSH and now we can connect fine but we can no longer edit any files or administer the site. We're getting the error "An error occured. Please contact your administrator". Looking at the FTP log it appears Contribute cannot find the lck files - actually none exist so I'm guessing this might be a Windows permission issue with locking the files for editing. I have tried removing all Contribute config files both locally and on the server and then the problem gets worse. FTP log says that it can't find the _mm folder - again probably a permissions issues with re-creating it. I'm not sure which user account Contribute runs under on the Windows server.
Any help or suggesions would be greatly appreciated.