issue is solved; line 060 was being used by WDS server, which is inactive for some time and we do not use it anyway. It was agreed to disable this line and so FOG server is already running smoothly - 40 GB test image deployed on testing PC within 3 minutes. AWESOME! Plus I’ve managed to integrate few utilities such as Clonezilla, Clonezilla Server Edition (or DRBL live), System Rescue CD, PMagic, GParted and AVG Rescue CD.
Will come back with other questions; thanks so far!