Sadly you will need to have at least novice programming experience to do this, and I'm not an expert either... if you can get your hands on a free copy of microsoft visual basic 2005 express edition, that would be a start.
Then read up on some tutorials in the tutorials and reference section... there is a thread somewhere in there that helps to get familiar with VB05'.
Next you'll want to get WinMerge, its free... google it and you'll find it.
Get both MODS that have components you want to merge together.....
make a new mod, with a new folder.... simply copy and paste ALL the files that don't overlap.... (i.e. if one mod has the CvDLLSymbolIFaceBase.h file and the other doesn't, you dont need to merge)
Any files that both mods use, you will need to merge... this is what winmerge is for...
once you do all your editing, you'll need to load it up in VB05' and re-compile the dll...
it can be very difficult, but if you are ambitious enough, I'm sure you can do it...
If you have any more specific questions, just ask here