If you don't know, don't try it, it could be dangerous. You need an electrician to teach you.
Rewiring is easy
using 18 AWG speaker wire to rewire a lamp
eHow is a great resource for topics like this, with articles like "How to Re-Wire a Lamp," "How to Rewire a Lamp with a Rotary Switch," "How to Rewire an Old Lamp," and "How to Wire a Floor Lamp."
Yes, if you rewire the bed and rewire the plug on the wall to 220 volts.
Type your answer here... Why are you wanting to rewire the brake lights?
The end sockets have to be rewired. The schematic for the rewire is on the ballast label.
Go to Road Race Enginiering they have a page on how to rewire the CAS
Unless the ballast is a multi tap primary you can not rewire it for 220 volts.