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Hi Jason,
Isn't it satisfying, actually getting something, when you first start imaging. Been down that path with 35mm film many years ago.
I am sure you will get some good advice from more expert DSLR imagers.
You really need to be tracking your prime focus images. The magnification, even at prime focus, with your scope would be way to high to expect to achieve well resolved point source stars.
Also, how are you focusing the scope. Often what looks focused just by eye is not the sharpest focus. There is a very extensive thread on IIS regarding the use of the Bahtinov Mask and how to build one. I have made one up for my 16" Newt and it makes focusing very easy and extremely accurate.
Another consideration is the collimation of your scope, if it is out then the star images will be bloated.
Just a few thoughts.
Regards
Trevor
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