Can someone please tell me which version i have?

Is v4.10029 the vanilla BMS install or have I already updated to Update1? I simply cannot remember if i ever applied that patch or not.

If I have not, can someone please advise if i can just install Update2 and be on my way? Is there any risk of loosing my keyfile?

Thanks. The BMS forums were surprisingly of little help

If you run the setup program it will show what patches you have installed if any. You need to install update 1 before installing update 2 BTW. I don't think you'll loose your keyfile but I'd copy it someplace safe just to be sure.