How are you trying to make it? Stone gear in the center with tin ingots NSEW?
[edit]: There you go. The gears thing is weird. It's not like it was before in the Tekkit world.
[edit2]: Aha. The wiki says the tin gear was removed as it's part of the Forestry Mod. The new recipe must've been created to get around that.
[edit3]: Nope. Tin gear is bunk afaict, so no Electrical Engines to convert EU into MJ. That's a kick in the nuts. I was planning on creating a few myself for RailCraft machines.
Maybe the overlords can majick a few until we see if the next update fixes it? Not if it would break anything though. I'm super gun-shy after The Scarecrow Incidentâ„¢.