I used to own a 60mm refractor when I was in college and for several years after.
Just some basic advice to help you get started. Pick a lens with the widest angle of view. Unlock the clamps on the dual axis controls so that you can make rough adjustments. Center an object in the lens (a small object works best) and then relock the clamps.
Now make fine adjustments to make certain the object is exactly centered in the field of view in the lens. Once this is done, make adjustments on the view-finding scope to center its crosshairs on the same target. By doing this you will make it far easier to find a target in the main scope at night. Always use the wide angle lens to find a target, and then, after centering it in the field of view, switch to a higher-powered lens.
Read the instructions on how to align polar axis of the scope (uncertain of the terminology relating to this; it's been a while since I used a scope) with the North Star. Doing this makes it easier to keep the target aligned, because the magnification of a scope reveals the rotation of the earth while viewing an object. That is, the object will wander across your field of view. When the axis of a scope is properly aligned, tracking the moving object is much easier. Some scopes have an auto-tracking drive...and once engaged, if the axis is "right", you can track the celestial object with almost no adjustments.
Wish I could be of more help....but it's been twenty years since I've fooled with a celestial telescope.
Regards, Shuckins