I had installed d-link 4.11, but reverted it back to the VM one on this thread....
My current FW: Firmware Version : 1.00VG
Checksums look perfect

---------- Post added at 18:04 ---------- Previous post was at 17:52 ----------
Actually: looks like you have the checksum info the wrong way round, and there are discrepancies in one of the files...
dlink-revb-factory-webflash.bin
CRC32: efe455b3
Md4: 475195f05b5202290decd05cf9de865d
MD5: d3380b515698cd7511ed4931a32d5779
SHA1: 6258581319311c775c559960d1346ef632dd7847
dir615d2-revb-ddwrt-webflash.bin
CRC32: c06b8735
MD4: 3b21a4cbafa76a6275fa830d1bb7fcc0
MD5: ec408bf54e85686107a1eef1bfb263c4
SHA1: 52bfc29b8bf60d40690076cdcf8b4b02a5ec8c79
......
:/
---------- Post added at 18:05 ---------- Previous post was at 18:04 ----------
PS. Thanks for the quick response...