Site Assist Pro will not be able to edit sites created with the earlier versions, it is more like a new product than an update like the other versions of SiteAssist. The older sites will still function the same without updating them, however if you want to use SiteAssist Pro to edit the sites you would need to recreate them in that version. If you have not seen any of the support resources please take a look at the SiteAssist Pro support page, there are many helpful documents and guides that can show you how to get the most out of SiteAssist Pro.
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