Temp. Gauge Issue

So, I found the following resistors at Radio Shack;

10.0 / 22.0 / 68.0 (they are as close as I could find to 67dart273 recommendations)

I have placed them in-line with a ground to temp gauge harness and observersd the following:

10.0 resulted in the needle moving to just over half way
22.0 resulted in the needle moving to just over the cold mark
68.0 resulted in the needle staying well below the cold mark

When the car is to tempurature, with a 180 thermostat and harness connected to the temp sensor, the needle runs just over the cold mark. Is there any way to some how adjust the gauge to be zeroed out at the cold mark at the 10 ohms? I have replaced the temp sensor with a Standard- TS17T. I will verify it has the correct ohm range needed. I have taken pictures of each result. Please let me know if you would like to see the results to compare.

Garret