HCPC Short data.
Not on NSS list, but with low float (mostly held by posters here), I think these numbers are significant.
I subscribe to Buyins.net, for short data. Here is the info for HCPC
Report Month ..... Short Volume (Shares)
03-2007 ..... 1,550,072
02-2007 ..... 1,105,697
01-2007 ..... 37,230
12-2006 ..... 77,955
11-2006 ..... 14,592