Normally, if a character ends with 3 it's a Mil3 character and poses are compatible for the most part.  You may have to do some minor tweaking but not much.  V4 is an entirely different character and her mesh is different so a lot of poses will work but a lot will need some major tweaking so that they appear correct.

I haven't had much luck with the Universal Pose format in P7.  It doesn't work as advertised for me and I end up tweaking the pose before saving it to my V4 folder.

Hugz from Phoenix, USA

Victoria

Remember, sometimes the dragon wins. Correction: MOST times.