I always use .obj format coming out of Max, but the digits are limited to 2 decimal places so choose .01 as the scale and if you are doing a hardline model do not have Max do anything with the vertices as they will be welded and you will have tons of grief. 

Uncheck the vertex radio box. Also uncheck the smoothing groups to be safe if you are doing a hardline model, such as a building or furniture with square edges. If they are split in max and you do not uncheck these boxes poser will try it's best to smotth these corners.

Also if it is a hardline model in the properties tab of poser uncheck smooth polygons for the object in question.

You will have to build a runtime folder structure to export to and then use the following setting in the the first dialog.

Export to the geometry folder and have Max point to the textures forlder for your maps if any.

If you have more questions I might be able to help you more.

Tom