Have you checked fog-client service is actually running on the machine and communication to the server is alright? Please post the fog.log here if you are in doubt.
@bylkem You can run whatever you want via snapin BUT it needs to run unattended (no user interaction) without GUI and access rights as SYSTEM user.
So for MSI/EXE installer you will need to find out if it can be run in so called silent installer mode. Ever program is different and ther is no general information we can provide about this.
This all is beyond what we as the FOG team can do for you.