The link I found on VZ's site does not mention that it is compatible with windows 8. Personally I have not run into any issues that I needed this software for. Are you having any problems now? If not I would wait until a compatible version is released
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http://forums.verizon.com/t5/Verizon-net-Email/Fix-for-Missing-Inbox-sent-folders-etc-with-Internet-Explorer-11/m-p/647399