Since it says Victoria rather than Victoria 3 I'd expect it to be for the version 1/2 figure. In addition to problems because the materail zone names don't match (so D|S will ignore most of the settings in the pose, because there's nowhere to apply them) it's a subdividing Matfile - meaning it splits the texturing at the joints to leave some areas with the original skin colour - and those don't work, or at least sometimes ddon't work, in D|S. I think you need to go to Windows>Surfaces, click the triangle button at top right and make sure Show surface list is selected, and then use regular multi-selection techniques (click to select, shift-click to select a range, cmd/ctrl-click to toggle the selection of a single item) to select the likely looking areas of the body, then in the Diffuse section click the button with the current texture name (or the triangle next to the colour chip if no texture is loaded), select Browse for image, and find the body texture (if the diffuse colour os not white click its chip and set it to white, too).