Where can I downloads the bixby check for some reason I can not get bixby check to work on my LT i havent used it in some time but think its time thanks ~

216.120.229.124/stoves/downloads/or go to bixbystove/downloads, look for this link

Thanks Blume !

Which bix check should be used 2.70 or 2.71?

and is the cable a serial cable? I have a cable hanging out the back that I had not figured out what it is for.....

You could have a serial RS232 end on it or it could have a USB end. If you have the Rs232 you can go on E-Bay and get a Zonet-ZUC100 adapter and then you can connect to your USB port.
Use the 2.71 to update your stove. It has many advantages over the 206 and the 2.70.
Follow that cable up to the control board and using a flashlight look under that wide white wire. You should see where the cable is connected. Be aware there is a clip locking it on the board. Pinch it with your fingernail and wiggle it carefully so you don't pull the wires or pins out. I do replace the pins and that black end if needed