I have a drawing dimensioned with ordinate dimensions. I wish to move the reference point. Is there a way to move the UCS to a different point and automatically adjust the dimensions accordingly? I am using AutoCAD LT 2005.Thanks in advance.

I doubt it, as far as I know:
You reposition the UCS, then select all your dims; grab the grips on the old 0,0 point and drag them over to the new one.
 
If someone elese has got a better idea, LMK