If you already have the FXPs/FXBs in the correct format for Kompakt, to import them into Receptor - simply put them in a folder, and drop them into the "drop installers here" folder (and load via the install button on the setup page).
I think your problem is that these FXPs/FXBs are for Halion that you wish to have working for Kompakt, this is a diferent problem. For this, you need to have some sort of translater (like Chicken Systems Translater) to run on your PC to convert Halion samples/programs to Kompakt format.
Alternatively, there may be a translation/import feature in Kontakt/Kompakt to load Halion samples (not sure about this) - however if you take this route, you would need to import FXPs/Samples in Kontakt/Kompakt, save as FXP, port the FXP & samples over to Receptor. You might be able to port these over to Receptor, and then do the import - but if it were me, I'd try to do this on the PC first and then port over to Receptor.
On second thought, I'm not even sure Kontakt loads FXPs. You might have to manually load Kompakt presets (.nki's) into Kompakt, then save as a Receptor preset (for each preset). This is a bit of work, but if plugs don't support FXPs/FXBs, that's what you need to do.
Hey thanks for getting back to me Kevin..Its looking like i will have to get a translator prog, and also a PC to install it n, as I use a mac. This may finally be the time I give in a purchase an old PC for such things...