I prefer to add my comments after the create procedure, eg

create proc rpcNameOfProc

   @AcctMonthEndDate datetime

as

--Custom script created for Client

--This script should be reinstalled and tested at time of an upgrade.

--Name - rpcNameOfProc

--Version - 4

--Author - Gareth Mercer

--Create Date - 20 October 2004

--Description - Used for the report Report.rpt

That way when you're at a client's and you want to know what version they have, you can do an

sp_helptext, rather than rely on the client to have a record.