TSL Patcher comes with a fantastic user guide and the software is quite user friendly. Take the time to sit down and read through the guide thoroughly. Besides, for head ports you'll basically just need to use the simplest features of the patcher, i.e. adding a few rows in appearance.2da, heads.2da and portraits.2da, as well as copying the necessary .mdl, .mdx and .tga files over to the user's override folder.