I don't think you can - I think you need a game to trigger the update - but even if you could there's little point if you are going to do a hotswap softmod, because you are going to replace the files on the C drive with the Kingroach ones anyway. Get hold of CASH or Slayers, and use the standard 5960 C files from there as the base for the Kingroach NDURE build - the Kingroach manual explains this. Build your image with Kingroach, hotswap (PC or xbox, either will work), erase the existing C drive, copy the Kingroach C and E across to your drive, and you're all done!
Alternatively, if you have another modded xbox (I'm guessing you have as you're a member here

) and an exploitable game, and don't fancy hotswapping, you could swap your DVD drive into the 1.0 xbox and do a standard gamesave softmod using Krayzie 1.1.1. To do that completely you'll also need a "recent" live enabled game like Halo 2 to update the existing dash to 5960 before you start.
Once you've decided which route you want to take, if you need any help just post back here or PM and I'll be happy to help.
..... and then you can TSOP flash it!!!