Not Sure How To Build Drum Maps Seems to be video tutorials for everything in Sonar but this? I step write my drumparts and simply cannot memorize which Key has which drum assigned to it and which variation....Hai-Hat Variations etc... Anyone build one for Metal Machine w EZ Drummer yet? Any help would be Greatful!!!

Grab yourself a copy of Scott Garrigus's Sonar POWER book.

It goes into sufficient detail to enabler you to build your own drum maps from scratch.

They might seem a bit arcane at first but once you've built your first dozen or so, it will all make sense.

When I started with MIDI drum program I just stuck little labels on the keyboard, black notes at back and white notes along the front

If the maps are different you could use masking tape. 

Check your PM 

Long overdue thanks, Jeff M. I haven't signed in for quite sometime. I appreciate you sending, though the Drum Maps still wouldn't show up uggh... I've just remembered, muscle memory, which note is which instrument sample... Annoying but what can you do?

Dofka... I've just remembered, muscle memory, which note is which instrument sample... Annoying but what can you do?

 
Is it really that big a deal? Kicks are generally on the same keys. C3... often there will be additional kicks on the white keys below C3. Normally a Snare is on D3, an alternate on E3, then your high, mid, & low toms on the adjacent white keys. F3, G3, A3. 
 
The black keys from C3 are usually a snare rim/block, snare roll, closed hat, pedal hat, open hat, Then you've got your crash & rides until you get to percusions...
 
That's a basic layout most manufacturers use. 

Metal Machine, is different since there are more drums/cymbals plus their variations.
 
ex:
Hats are C3 through F3 (tight tip, tight edge, closed edge, open max, etc), and more at A0 through D0 (pedal, foot splash, open 1, 2, 3, etc).
Toms are C4 through B4
Cymbals are C#2 through B2 and more at D#0 through G#0. 
 
Since I use MM quite a bit, making the drum map made it a lot easier.

Yeah it's pretty necessary to build your own maps.
Here's what I like to do in the drum map editor:
 
First write down what articulations are available for each part in the kit you've made. Then organize them ina way that makes sense to you.
Mine will look like this vertical:
Crash (mute)
Crash (crash)
Ride (bell)
Ride (crash)
Tom 1
Tom 2
Tom 3
Snare (flam)
Snare (rimshot)
Snare (center)
Hi hat (open 3)
Hi hat (open 2)
Hi hat (open 1)
Hi hat closed
Hi hat pedal
Kick
 
for example. Then in the drum map editor you need to assign all of the outputs (far right column) to EZDrummer. Name the parts how you wish them to appear in the piano roll like I wrote above. Then set the MIDI OUT notes to match what needs to go to EZDrummer. The MIDI in notes can be whatever you like for playing on a keyboard. I'd suggest keeping the basic parts the same so that you can import MIDIs and have them play back (i.e. 36 kick, 38 snare, 46 open hat etc).
 
Now in Ezdrummer I don't think you can change the MIDI mapping so you'll need to look in the manaul to find the notes that you want on MIDI OUT.
In superior drummer you can change them so I just label them ascending from 1
My map looks like this as an example
 
Crash (mute) in in 5 out 16
Crash (crash) in 57 out 15
Ride (bell) in 53 out 14
Ride (crash) in 59 out 13
Tom 1 in 47 out 12
Tom 2 in 45 out 11
Tom 3 in 43 out 10
Snare (flam) in 4 out 9
Snare (rimshot) in 3 out 8
Snare (center) in 38 out 7
Hi hat (open 3) in 46 out 6
Hi hat (open 2) in 2 out 5
Hi hat (open 1) in 1 out 4
Hi hat closed in 42 out 3
Hi hat pedal in 44 out 2
Kick in 36 out 1
 
But it's a 7 piece Superior Drummer kit with 15 cymbals..so it actually has numbers up to over 100 for all the articulations!