If you are looking for datasets from amateur astrophotographers to practice with, there are a number for useful resources.
Processing is meant to be fun! If you really need help with a particular dataset, jump on the forums or contact us directly for some pointers - even if you're just using the trial.
Thank you StarTools for turning my average photos into amazing ones.
In this case the Life module can be used to isolate objects in an image and lift them from an otherwise noisy background.
Upon opening an image, the Tracking dialog will open, asking you about the characteristics of the data.
StarTools' AutoDev module however uses image analysis to find the optimum custom curve for the characteristics of the data.
You can convert everything you see to a format you find convenient. Give it a try!