i understand painting tattoos on to the texture map but how does one line up the seams ( if say i dont want one on either front or back ) up the side and secondly on morph targets what use are they apart from at the original setting

The best way to do this is paint in layers. One layer for each arm, AND each side of the arm (4 layers total). Then move the layer as needed. Note you will probably get some pretty bad distortion at the seams unless you are using very plain tattoos (i.e. tribal lines). Don't be surprised if you'll have to remap the part in question to get a really good tattoo to work. I'm not sure what your question is about Morph targets. I use them to reshape a face, or body part in a way the dials do not allow.

There are color coded seam guides in freestuff...go get them! They really help a lot.

If you search for "tattoo" in this forum you should find where people have remapped the figures so that the tattoos have less distortion around the arms and legs and sides. smerc