Basically, jflp is the best patch available for freelancer, it’s unofficial, but it really should be the only patch you apply to freelancer if you plan to play the game without mods. It provides many bugfixes, and some nice features like widescreen, and it also contains hudshift when you install it. If you install jflp on a client then install it on the server also, you will find a full description of changes in your freelancer directory in a file called jflp after you install it.
The 1.1 patch is an official patch, just install it on server and client, only really necessary for servers but just install it anyway as you can’t do any harm.
You don’t need to install any other patches, hudshifts, quickfixes etc.
If you plan to use any of the major mods, forget about installing any of the above patches etc, just activate the mod via FLMM1.3 as they will 99% of the time contain all of the necessary patches and features, see the “read me” in most mods for instructions.