If it's what cooljess thinks it is or even what I think, this shouldn't take more than 20 minutes.
In fact, this is more likely to be useful for you:
http://www.pelicanparts.com/BMW/tech...t_Bushings.htm Figure 8 in that guide is the picture to see. Your shifter should be facing away from the tranny and the curved part of the selector rod should be at the tranny side.
The spring clips holding it in are really easy to take on and off. A flathead is the most you'd need - I can usually pull them off with my fingers.