I wrote a tutorial for updating the firmware on a Sky-Watcher SynGuider. If you have more questions or feedback please feel free to get in touch with me. I hope this comes to use and helps out people to understand the steps needed for the updates.
There are numerous guides you can find in Youtube, most of them are basic and simple enough to get you going with your image processing right away but one of the best I’ve seen so far are made of DugDog’s Easy123-guide.
Have a look on how you work with curves and levels in Adobe Photoshop in order to enhance non visible light data on your stacked image with two simple steps.