However, we are in communication with the archive's sponsor/maintainer and trying to work out the possibility of serving the HP/UX archive off of one of our existing Linux systems. Unfortunately, the software which current handles the process of mirroring the archive between systems is written and compiled for HP/UX only - and will not run on Linux as-is.
The archive maintainer is hopeful that he can port the software over to Linux (he's currently serving the archive from a Linux system) but until he has done so, there is no way to accomplish this feat.
So the short answer is, we're trying to work out a new HP/UX archive server, but there is currently no ETA or estimation of success in the project. Sorry.