iPod - Broke the plastic piece securing the screen cover on my Nano.....

Hello,

I bought a 4gb white nano on ebay for $10.50 working except it had a black spot on the screen/the click wheel wasn't working.
I went to replace the screen and the click wheel, and now it all seems to be working (I think) except the screen.
I can see the contents on my Mac and everything, but no display (and no clicking).

While I was changing the screen I accidently broke off the little black flimsy connector for the screen ribbon cable. I didn't break the one for the clickwheel, but the screen one is shot.

I put some electrical tape on it to try and hold it on and it still isn't working but it's hard toget it in all the way. Once when I plugged it in I got the screen to light up white, no text though.
On my brand new logic board.

Why....