Yes, that's because the guider has a mirror. Some software packages will allow you to flip the image. (MaxIm DL does; not sure about TheSky.)
Apparently TheSkyX does not. http://www.bisque.com/sc/forums/p/28865/143770.aspx#143770 It would be nice to be able to flip the image but I'll just have to note this mentally when positioning the camera.