I've just downloaded pack 42 and had a look, and to be honest there's actually no need to convert the models at all, they're pretty much GameGuru ready as they are.
All you need to do Is load then save the .x files using Mender (this fixes the skin weights and stops wiggly limb syndrome), edit the FPE file (the FPE's they come with have some old commands that need removing or changing) and then drop them in the entitybank.
Each of the existing pack 42 FPE files has a list of all the animation frames at the bottom, all you need to do is work out which one is which and create a CSI animation list so they work with GameGuru AI scripts.
The biggest issue is getting the animations to work with GameGurus AI scripts, the models are designed to already have a weapon, but GameGuru is designed so you choose a separate model as a weapon in the FPE file. You might have to write new AI scripts for them.
i7, NV960 4GB, 16GB memory, 2x 4TB Hybrid, Win10.
i5 , AMD 6770 1GB, 8GB memory, 512GB Generic SATAIII + 2TB Seagate Baracuda SATAIII, Win7.
i3, Radeon integrated graphics, 4GB memory, 512gB Generic SATAII, Win8.1.
Q6600, Intel integrated graphics, 2GB memory, 180GB Generic SATAII, WinXP.
