not bad mate your doing well for some of your first images! though ill let you in on it, you have to be aiming at 1o minute photos at a minimum anythihng less is well just not good enough at the end of the day.
get your guiding on the roll. but make sure of a few things
1. get your polar alingment on the money (try polar align max small donation easy alignment!)
2. work on your alignment for reasons i have already posted but for your benifit the better/more time you spend with your alignment the better your guiding will be.
read this artical i wrote
http://brendanmitchell.net/?p=386
its not just enough to say yay i have attained calibration that means diddly unless you have attained near perfect calibration but thats a whole nother post. Next is to run your exposures out to a fair time anything less than 10 minutes is a waste of time for anything other than a test to say yay i can shoot a photo!
I have to say taking a 300 30 second photos is not worth anything apart from wasting your time I know this is controversial but its silly to think that 300 30 second photos can capture more than 1 10 minute photo. sure your noise is reduced but your signal isn't increased...........
Ill leave you with that small bit of info but if you want more details just ask
i will be happy to expand and one day i will do a comparison to prove my words.
Brendan