Version 4.0 of r.a.d.menu
came with a brand new skinning mechanism, using different classes, as the rendered html is much different form that of the previous versions. The .zip archives you have downloaded from http://www.telerik.com/skins
are for version 3.7, and this is why you cannot them get to work properly.
We are currently adding the new versions' skins of r.a.d.controls
, and in a few days they will be available for download.
In the meantime, you can check out your RadControls/Menu/Skins
folder and copy the desired skin from there, as all r.a.d.menu
4.0 skins are included in the QSF.