Okay, remember I'm still a poser newbie. When I design clothes on a template, how do I make sure that the front and back match up right, like shoulder straps, etc?

One method: Open the model in Painter 3D, carefully make variously colored lines that cross the seams. This will show you where to match up the lines on the template. When you get near the seams, place the color one dot at a time, rather than painting continuous lines. Do it the other way once and you will see why. This works best if ypur paint program supports layers.

well, I have photoshop and PSP and painter 3d, so that's not a problem

cool

The mesh lines are not what I was discussing. I prefer P6 to do textures, but on a mesh that is split front-back, it is difficult to do tan lines,etc. By drawing lines across the seam in different colors, it makes it easier to make the match, especially if this guide is a partially transparent layer, to be turned off for the final texture. To repeat advice that was given to me here: Take your model into UVMapper, save it as a single group with a different name and "aquire" the model in Painter 3D. If you want to live in P3D you will not need the guide lines, but the layer function is not nearly so robust as it is in P6, or as I understand it PSP or PS.

A more accurate way to line up items back to front is to use the bezier paths in Photoshop. The grid lines in UVMapper generated template have a width, and some high resolutions choosing where the middle of the grid line is, can make or break the joint. It is fiddly getting the paths to line up, but when you have them completed you have a series of accurate lines in the paths palette. Stroke the paths and you will have beautifully flowing lines for edges of clothes, seams etc that you can use over and over again - no freehand wobbles.

And in Photoshop it is best to 'multiply' the texture layer on top of the background template - you get a better feel for the colour depth when working in the texture than using slight transparency.