The model appears to be a set of parented pprops, This can be confirmed in poser by either using the pulldown selector, chose props , and read the list, or by opening the heirarchy editor from the windos menu in Poser.

you can select and export each prop individually , for asembly in 3dsmax or you can check in max after export from poser and selecting the export optuons that retain existing groups.

you can create a figure from the parented prop groups but that wont get you a rigged obj for export and you would ned to adjust the rigging in poser 

In Poser 7 you can yell what the item is by what library its in. Figures are in figures, props are in props.