[PLUG] Fan trouble...

[Someone]

I ordered an LGA 775 socket fan/heatsink combo and I can't seem to use
it with the Intel D945Gcz board I picked up.  I have a hunch that since
I can't get the copper plate down on the processor that I don't have
adequate thermal conductivity.  There is this plastic piece and the
aluminum screws into it, but that makes no sense.  The plastic piece
covers some of the pins on the processor.  I'm debating on whether or
not to cut the screws off that are used to hook on the plastic piece.
I'm beginning to wonder if that is what you are supposed to do.

Another problem I ran into with the micro BTX case I'm trying to install
this board in is that the ATX power connector won't reach.  Is there an
extender for that that I can pick up or am I looking at an unsightly
modification?  

What should I use to glue the processor to the copper part of the
heatsink?