Glad it worked in GB.
Apparently, your browser has images turned off, otherwise you'd see the picture I posted above which shows where you access EZD in Logic. Then
In the I/O section of Logic's channel strip, on an instrument track, click/hold on the top button and from either Stereo or Multi-Channel, select AU Instruments -> Toontrack.
will be more clear.
ezdrummer takes alot of memory yea?
Yes - a standard kit will use about 250MB. So that, plus Logic, plus the OS itself is using more than you have available, so your computer is using swap files which can make the performance slow down significantly. More memory will help, and it's pretty cheap these days.
Try
http://www.ramjet.com