I bought a pack of sculpts and all I got was textures?
What the &*@# am I supposed to do with them?
Those textures are the sculpt maps that are used to create sculpts. To apply the sculpt map to a prim, you need to be in Edit mode, then select Object tab, then change building block type to Sculpted.
A rainbow looking box will appear, this is where you will drop the sculpt map that you have purchased. Underneath the rainbow box is another drop down box that says Sphere by default. This is the stitching type, please see the included notecard with the sculpt package you bought to determine the correct stitching type for your sculpts.