Well it probably could've been out a bit sooner - but Proxykiller version 2.3 is here! Not only has the HUGE security hole been fixed - but a number of other capabilites have been added to Proxykiller including the ability to handle POST requests.
A detailed description of the security hole can be found right here. Its an interesting read to say the least and should be taken very seriously. Oh yeah - everybody who is using this code needs to upgrade. This hole is NO JOKE and this document explains in detail how to exploit it.