The Bishonen morphs might be a problem. Not many clothes have them built-in. If you have The Tailor (sold by DAZ), you should be able to transfer the morphs, but otherwise, it might be hard to find clothes that fit.

Texture maps...sometimes the creator of the item provides a texture template. If not, you can generate one yourself with a free program called UVMapper. (It's easy, really!) The image above is a UVMapper-generated template of Ed's jacket. (It's very small, for bandwidth purposes; you can make it any size you want. Larger will look better, but take more system resources when it comes time to render.)

If you look at it carefully, you can see sleeves, cuffs, body of the jacket, zipper, etc.

What you would do is take a template like this into Photoshop, create a transparent layer on top of it, and color over it, using the template as a guide. When you're done, turn off the template layer, and save your work as a JPG or TIF. Use it as a texture map in Poser.

That's how I made the generic DAZ football helmet into a Dallas Cowboys helmet in the first pic I posted. I just used Photoshop to draw the star and stripe in over the helmet template, then used it as a texture map.

I think you could make the zipper look like snaps, just by painting a few circles on the zipper map. (That long, skinny thing on the right.) Unfortunately, Ed's jacket doesn't have an "open" morph, so you wouldn't be able to show the jacket as in your photo, hanging open.

If you want to try texturing some other jacket, you can hide parts with a transparency map. Those are done the same way as normal texture maps, only they are just black and white. Anything white shows, anything black is hidden.