I used this diagram.
Wiring Oven
This is the contactor
http://www.famousparts.com/c25bnf240aco.html
This is the controller
http://cgi.ebay.com/Celsius-999C-Dig...QQcmdZViewItem This is the Fahrenheit one if you prefer
http://cgi.ebay.com/Fahrenheit-999-D...QQcmdZViewItem
On the left is the contactor, the right is the controller. L1 and L2 are the hot legs from your power supply and the A2 is the neutral. T1 and T2 go to the ends of your element. Tie into one of the hot legs, at L1 or L2 (which will be 110v) and run it to an on/off switch to break current. Come out of the switch and run to #3 on the controller (yours may be designed differently but the symbols in the schematic may help you). Tie into the neutral, at A2, and run it to #2. Use a jumper wire from #3 to #4. #5 goes to A1 to supply the 110v back to the coil on the contactor. #9 and #10 are the +/- of the thermocouple. #1 is obviously ground. I haven't wired in an alarm (#6 and#7) but it should work like #4 and #5 requiring a jumper from #3 to #7, and #6 to power on the alarm (you would also need to tie into the neutral at A2 and run to the neutral on the alarm). #8 is unused. I am by no means an electrician and this is actually the first wiring I've ever done with 220v involved. My oven is actually going to run three contactors with a three position switch to control which elements burn when. If I had a paint software I'd draw a schematic of what I've explained, but I don't. Oh well, I hope this lengthy post helps.