Since we run SuPHP setting permissions to 0777 is not possible. A 0777 permission makes the folder world writable which is a huge server security risk. Running SuPHP means the processes for your script now run under your username and not as nobody. To make a folder writeable under SuPHP just set the permissions to 0755. If you need help with this please submit a support request.
If your would like to see why we think this is so dangerous see this google search http://www.google.com/search?hl=en&rls=com.microsoft%3A*&q=777+folders+hack&btnG=SearchÂ