If you get problems with your MGW installation you can visit the MGW support page http://www.moregroupware.org/support.php

You can subscribe to one of the mailing lists or browse the archives, you can visit the MGW IRC channel (irc.freenode.net, #moregroupware) or you can submit bug reports and support requests at the MGW Sourceforge project page https://sourceforge.net/projects/moregroupware/

Remember that MGW is a open source project and not a commercial product! You can not expect a very high service level from the developers as they are doing all the work in their limited spare time.