PTP500 H/W S/W versions and SNMP MIB

Hi All

I'm currently using PTP500 radios with the following H/W S/W versions.  Just wondering if it's the latest and greatest? I realise this product line is now discontinued.

H/W

D00-R09.03-C

S/W

58300-04-01

Would be great to get hold of the firmware files because I don't have them and I do have some equipment on earlier versions.

Also trying to track down the SNMP MIB's for these if anyone can help?

many thanks,

Steve