Canon EOS 300 (Rebel 2000) dropped -- Help, please!

Hi there,

On a whim, I have bought a Canon EOS 300 that was dropped (dirt cheap
at auction). I've fixed the film door latch and rigged up a temporary
fix for the broken / missing battery door. I have no EOS lenses at
present.

When I fit a Tamron Adaptall-2 lens (via the appropriate EOS adapter)
and load a spool of "test" exposed film, nothing lights up in the
viewfinder and the shutter won't trip. On the other hand, everything
on the LCD looks correct ('00' for aperture to show no EOS lens
attached).

I suspect this means the camera is well and truly broken, but could
someone familiar with this camera body please confirm that? I could
borrow an EOS lens from a friend if it's thought worthwhile. I was
expecting to have stopped-down metering with the Tamron lenses.

Cheers, and thanks in anticipation.

Richard