Considering that I wrote one of those Troves--it was one of my very last 3E projects--and that I don't get paid until it's published, I certainly hope they're still around.
Yep. It was a collection of mostly ECL +0 or +1 templates that was intended for PC use, rather than for monsters. I was pretty happy with it.
Honestly, given how long it's been since I heard anything from Ian, I'm about ready to start asking around to see if any of the other companies still doing 3E material would be interested in it.