I downloaded the software suite from the nand2tetris site and I'm in the 2nd week's assignment. When I was about to start ALU-nostat implementation, i found out that the .hdl file was missing in the projects/02 directory. To make sure that I'd not deleted it by mistake, i checked my recycle bin too, no yield. The file is missing. How do I get the .hdl file? Should I mail the admins for the file?