Electrical system....
For your speedo, it may be something as simple as them unplugging the unit while working in the engine compartment or a blown fuse. As for the RPM, that signal is being sent through the MPEM. Since both are not working, I think it may be a blown fues in your electrical fuse block. That one should be in the compartment up front.
There is also one in your engine compartment. That has the engines fuse block along with the MPEM and ECU module and other electronic hardware.
If all they did was an engine replacement, then I woudn't see the need to reprogram anything.
The 4-TEC series engines electrical system "Engine Management System" has got to be programmed to add any outside accessories, even a bilge pump. The V.C.K. (vehicle communication kit) and the B.U.D.S. (bombardier utility diagnostic software) is used to program everything on these. I wouldn't think this the case though, since the only thing replaced was the engine. There wasn't any electrical system replacements, were there? All your sensors were probably left intact with everything else.
Check the fuses.....
Welcome to the forum!.............:cheers: