Argh, I [b]always[/b] delete previous versions when I get new things! I think I know the problem now though... The volume bar doesn't appear until you click it! I'm not sure what the deal is with that.
I did (download it) on three separate machines at my place and to my girlfriend's comp but didn't have any problems with it at all...the volume bar was intact each time. Like I'd mentioned before, sometimes it's necessary to delete the previous version of a skin for the updated version to work properly. This is especially true with a Windowblind or VS but it can apply to most any app...including Winamp.
The update contains the same files/content as the previous version...just a couple of minor changes to the shufrep.bmp and pledit.bmp were made. You can verify what files a .wsz contains by simply opening it up with Winzip and everything that's supposed to be there...is. Sometimes it's necessary to delete a previous version of a skin whether it be a Winamp, Windowblind, VS, etc. for a revised version to work properly...