Hi Marjorie!
I, too work for a lab that is not affiliated with a hospital, but rather is a
biotech firm that makes a human living  skin equivalent called Apligraf. I
routinely use cadaver skin as my control when I do IHC on the Apligraf.  (I have
also used skin obtained from reduction surgeries.)
I would also like to add that the folks on Histonet, NSH, and my state society
have all been a generous resource when I have needed human control tissue. 
-Rachel

Date: 17 Oct 2000 07:00:44 -0500
From: "marjorie lehman" <Marjorie.Lehman@unilever.com>
Subject: Cadaver skin
Hi,
My laboratory is not affiliated with any hospital/medical facility, therefor I
can't beg for scraps (" ....Please Sir, may I have some more skin ....") to
use for method development. The samples I get are small/few/far between and I
have
to use them for actual tests.
 All that sniveling leads to my question: can I use cadaver skin from a tissue
bank for IHC. I have used it for stains and it's ... well ... usable, but I
have serious doubts about IHC.
All thoughts/advice greatly appreciated.
Marjorie