We've done some changes on the Nude Clothes for Females, as well as on the Black Vinyl Pants. You'll certainly need eagle eyes to see the difference, but we strongly recommend you to get the new versions as we also did some technical changes which you need for future downloads.
Make sure the downloaded file for the pants ends with v.1.1.zip and the nude clothes with v.1.2.zip if they don't you'll have to empty your browsers cash before you retry to download.
You can simply install the new version.