System Integration, Modular Interconnection

I'm having trouble connecting the different blocks of code for this project and I'm new to HDL programming.

I'm modeling a MAC receiver for IEEE 802.11 for Ad-Hoc Networks. I seriously and urgently need help. I have attached all the codes involved (including the 3 files in the zip folder). Somebody please help a man.

I need help with code correction.

Thanks.