i actually sell the universal solderless adapters for the xenium ice, they do not use wires , just 1 wire , and its actually gold/copper, and very sturdy.
they use pins which are spring loaded. They are extremly easy to install for any n00b. Ive tested the adapter out myself, by installing it, takes less than 30 seconds to do, for a n00b maybe a few minutes. You align the adapter over top, put in the screw, and tighten it till it is firmly in place.
The only wire is the D0 wire, this fits right into the hole, and you just push down a bit on the upside down U arc. This ensures even with movement it won't easily come loose. Ive tried shaking, kicking moving etc the xbox after, and it didn't budge. For better connection of course soldering is better.
The lay out of the xenium menu is also very user friendly.
under the launch menu, are where all your bios's can go.
Your retail bios can be added here, by clicking add new , then selecting TSOP
That takes a matter of a few seconds to do, and now you have your retail bios.
You load that whenever you want to play on xbox live.
To play backups etc, you need to go to the add menu again, and this time select FLASH, you can select to flash it either from the D: drive or the E: drive
Select your haxx bios, and it will have that one as well.
You can have a total of 5 bios's including the Retail.
1 on board, and 4 on the chip (256kb in size)
Hope that clears things up just a bit for you.