ok got it, have to click on write effects at the bottom, doh, no problems for me, I made sure I clicked on all the B1on effects as well as the extra ones I wanted and all my own patches were still there sounding as they should.
Have to say, most the effects in the same category are basically the same, they're just got different settings, I downloaded some guitar amp sims and you can get them sounding the same as each other with a bit of tweaking, I suspect I could get the bass amp sims and distortion/overdrive effects sounding like the guitar ones if I did some tweaking, but hey, saves messing about