You will lose the cargo and crew feature if you overwrite SH3Cmdr's "Ship names.cfg" with an older version of the file, which will be the case if you used an older set of GWX update files when you reinstalled (there's a few versions around for GWX but only the latest set for GWX3 correctly excludes "Ship names.cfg").
The easiest fix is to simply d/l SS's latest ship names update (
http://www.subsim.com/radioroom/showthread.php?t=154383) and follow his installation instructions.
Note that even after installing this file you will NOT get crew and cargo details for ships that have already been named; only for new ships sunk.