tetris using smd

ran across the tetris game that DDIY site had by Graham Mitchell and planning on building using all smd and looking over the schematic it is using a 18f4520. My thought is using a 18f43k22 instead. looking over data sheet they appear to be basically same in memory etc.
need to locate the complex code that was used and then what led matrix CA or CC.
anyone have the artical from DDIY. I know Jon was the administrator.
Plan to have boards made for a smaller hand held version.

well here is the new schematic using smd