I also have a VXT 2000+. I think I got the software images for it here as a
CD-ROM image in the InfoServer software:
ftp://ftp.hp.com/pub/openvms/freeware/infoserver/freeware_readme.txt
ftp://ftp.hp.com/pub/openvms/freeware/infoserver/infoserver.zip
VTX Software V2.1 InfoServer/VMS ag-pjjhh-be.img