Does anyone know of a module capable of "seeing" HTTP POST variables submitted to it?  I need to do a forms application auto-populated from variables sent to it via HTTP POST.  I haven't found any module capable of working with these POST variables.  Ideally I'd work with a forms module but even if there's no forms module which can auto-populate from POST, if I could find a redirect module capable of receiving the POST variables and converting them into a URL string in a redirect, I could pass the information to the forms module in that way (several of the well-known forms modules can receive URL query data).

True...

However, I've found two modules that can do it:  ListX by Bi4ce and Xmod.  I have used Xmod quite a bit, and I can speak very highly of it; I had forgotten it has that capability!