V1.1 fixed a bug with the incorrect filename of the green rug in V1.0. If you already have V1.0, simply rename "prp_rugblue_d.dds" to "prp_ruggreen_d.dds" in the "Green Rug" subfolder.

If you prefer this option, replace the Green Rug subfolder in the original folder - you must have downloaded the original file for this to work.