Hi Tom and well done on your first successful observing session.
Rob has some great advice there, listen to him as Rob is one of the best small scope observers out there. If going deep sky, mainly use your 25mm EP which will give you 48x. Doesn't sound much but most bright DSOs will be easily seen at that power. I do much of my observing at 67x and 113x in the 12" but even at 113x it needs reasonable seeing to give good views. Your 10mm EP will give 120x, as it has a small field of view being a plossl, will not get a lot of use.
The colours in Jupiter are subtle, I see lemony yellow in the lighter areas and sort of brown in the bands.
With the movement of the Dob, if it is the horizontal movement (azimuth), a couple of felt pads between the plates of the base can help smooth it out. If it is in vertical (altitude) make sure you have the aluminium knobs on the side in the correct position that the scope is balanced with an eyepiece in place. The brake on the action can be adjusted with these knobs and make sure it is not too tight. Play with them a little and get it just right and the motion will improve.
Glad you got the finder sorted out.
Malcolm