Gary,
MVRP for Cisco was on the CAT6000 series for IOS and the 7000 series for NX-OS.
You will need to manually propagate the VLANs between HP and Cisco and verify that the STP protocol you select is compatible with HP.
Also, make sure that the interconnecting links between HP and Cisco are 802.1q trunks. ISL tagging is proprietary as well.
Regards,
Anthony