thank you for all the responses on this issue
funny thing is they told me they guarentee there work but when i said the car still overheated they said all they will do is try to find the problem, then said they wanted to have the radiator sent out and would cost more money to do it, how is that guarenting you work by telling me its definataly the thermostat and then telling me it will cost me more money to find the real problem? so i doubt i will get anything back. but will absolutaly post neg reviews on sites and maby even the BBB
as far as the temp guage , when this thing rose it rose quick with no symptoms of anything except the loss of my a/c. Is there anyting i can buy to add like a warning buzzer to let me know if it starts to overheat? I dont want to go through this again.