The scope you got is a low end Celestron. It is not a scope that would ever be recommended, but still a good deal since you got it free! It, however, is probably the worst telescope sold by Celestron. It has a horrid mount, and a cheap focuser that only accepts 965'' eyepieces. A big issue is its 50mm aperture, which won't show you more than 10x50 binoculars. But, if you mod it, it could be a nice little scope.
First of all, trash the mount. It will likely turn you off astronomy. It's so wobbily that it would make a good earthquake detector. The head is completely plastic and the legs are paper-thin aluminum. Get a plain photo tripod, even a marginal one is likely to be much better.
Second, get better eyepiece. Nobody makes good .965'' eyepieces anymore, but I did find
this at Telescope Warehouse. It should give you a pleasing low-magnification view.
Better yet, get a .965 to 1.25'' hybrid diagonal and pick up a few 1.25'' Kellners or Plossls.
Finally, download
Stellarium. It will be an excellent beginning resource. You may also pickup a few star charts or a planisphere.
Hope you have fun with your new scope!