Trackpoint III Question (Need a part on the keyboard)

[Neil Ripston <Neil.Ripston@internetmci.com>]

I am currently using a Toshiba (Heaven Forbid, a non IBM Part!)
eraserhead on my Thinkpad 760.  The red Eraserheads from IBM don't last
too long and are expensive.

My question is:
I need to obtain the square thing that the eraserhead fits on.  This
little square thing in turn fits onto the little toothpick type piece
that is the trackpoint.

IBM says it comes witht he keyboard.

I once thought this mailing list had a question about parts and somebody
gave a web site that had drawings and I could obtain IBM Part Numbers. 
I no longer have this address or message.

Any suggestions?

Thanks,

Neil Ripston