First - Watch the youtube video by Rory - search for "How to fix a dryer that's not heating up - Hotpoint ".
FYI - My machine is a T632CW and has the following connections.
1) Thermostat with Green Dot is the left thermostat on the plate. It has all Orange connections, wire to LEFT connection has length that is of course shorter than right wire length.
2) Thermostat with no Green Dot (i.e the right thermostat on the plate) has a LEFTconnection to BROWN wire and the right connection to LIGHT PURPLE wire.
Information is at your own risk and you should always consult a professional, etc.
Bod, November 2010