I prefer to add my comments after the create procedure, eg
create proc rpcNameOfProc
--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.