I did some Googling and found that Isuzu World is German Auto Haus Isuzu just north of Albany, NY. They're a former Isuzu dealer and an Isuzu authorized service center, so it all looks legit. The problem is they show one picture of a net and then there's two or three part numbers to choose from.
They don't have VX accessories listed on their site, but ya could call them and inquire about the VX net #2-90099-910-0.
There's an Isuzu net on Craigslist for a '98-'04 Rodeo for $5 -
http://dallas.craigslist.org/ndf/pts/1103907951.html
Mark