Les, UVMapper Classic's rotate command rotates the model, not the map, but only as far as the mapping "camera" sees it, if that makes sense. The idea is that you rotate the model as far as UVMapper is concerned, and then re-map. The spatial visualisation capability required to do this may be beyond mere mortals, however. Your chances of getting it right first time are minuscule. :) To further confuse matters, there's an export option which retains the model rotation setting, but since there's no 3D preview you'll need to be really on the ball (or plane, torus, cylinder, box etc.) to get the results you expected.

If you think you may get into modelling to any extent, you may want to consider buying UVMapper Pro, which will do all of this and more, better, and with less fuss. It's the first 3D application I actually paid for, and I've never regretted it.