We're glad you like the new & improved saved listings page; our plan is to extend that same design 'look' to the active and closed listing pages as well.
Re making the new page the default, we have to set the new saved listings page as the default on the site; there unfortunately is no way for you to do it just for your account.
We will be making that change in the next couple of weeks, so you won't have to wait long.
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