Overiding system message pages for double opt-in

Question

OK I am wondering if this is possible I have searched and found no info on it but I jus tight be searching the wrong keywords.
I want to amend the way the system messages are working for an email marketing double opt-in process.
Right now an email is being issued to the user that subscribes and they click the link to confirm their email. This link takes the user to the system page 'Subscription Confirmation Request'. From there they click the link and they are sent to another system page called 'Subscription Confirmed'.
Firstly can I nominate my own page from the email instead of using the 'Subscription Confirmation Request'? Can I amend this tag in the email: {tag_verificationurl}
Secondly if I cannot amend the frist step can I redirect the second confirmation page to go to my own page instead of going to 'Confirmation Request'? Can I amend this tag: {tag_confirmation_form,Confirm}
Logically I could simply customise these 2 pages but the problem is it means any subscriptions to anything on the site will also see these pages so it does not work when more than one subscription process is required.
Assitance appreciated.

Answer 1

Hi Matthew,
The only option I can think of will require to bypass the opt-in process which the system will automatically opt-in subscribers.  Which you can then have the subscription form perhaps just redirect elsewhere. 
http://kb.worldsecuresystems.com/178/bc_1787.html (Bypass double opt-in)
Unfortunately if needing to use the opt-in process the steps cannot be further customized which I think you may be after at this stage.
Kind regards,
-Sidney