I've had a few pms and emails from people who can't get the shower to "work." I have discovered that it is usually because the new shower is kind of disorienting and you have trouble finding out where to drop them to trigger the action. So, if you are having that problem, and you are certain you have the shower_anim file in your images folder, just drop your (dirty) lil peep in the spot shown in the screenie below to trigger the action. If they are not "dirty" enough, they won't take a shower no matter where you drop them.
Just in case anyone is having the same problem with locating the cobwebs, here is a screenie showing the location you need to drop them for those. (My cobwebs are modded to be a bit more visible.)