Anchor-linking to Archive

I want after click on this volume (http://www.myjournal.com/index.php/MJ/issue/view/2) ,
go to my another journal (http://www.old.myjournal.com/index.php/MJ/issue/view/2)

OR

http://www.myjournal.com/index.php/MJ/issue/view/3) ,
go to my another journal with link (http://www.old.myjournal.com/index.php/MJ/issue/view/4)

I see in froum, we must edit /public_html/templates/frontend/pages/issueArchive.tpl
but I dont know how edit ?

please help me? please help me?