Where can I find helixlauncher 2
Helixlauncher hasn't been updated in a long long time. And as far as I know never was made to work with Froyo. Launcher Pro, ADW, Zeam, GO Launcher EX, and a few others should work with Froyo, gingerbread, and whatever else since they are still being updated. Most have similar features, and more than Helix as well.
But to answer your question [APP] HelixLauncher2 0.7 + System App Mod [18/05/10] - xda-developers
I believe the guy behind helixlauncher joined the ADW team
edit: actually, since I'm taking about Faruq Rasid, I think he just dropped helix in favor of ADW so he could focus on QuickDesk