I've already given you a couple solutions ...
1 - create db repdef with the current logical connection as the primary db, then create a db subscription
2 - use Luc's write-up to convert your WS to MSA; at that point you just create new db subs into ASE3 using the db repdefs for ASE1/ASE2
If you don't know how to create a new repserver (if that's what you want), don't know how to add a database to a replication domain, don't know how to add a db repdef/sub ... then I'd suggest you let your manager know so that (s)he can either a) get someone else on the project who knows their way around repserver or b) arrange for some training.
This forum really isn't designed for detailed training lessons and/or designing detailed implementation plans.