I hope you get some help. Apparently people have been asking my isp if they're going to offer imap and so far they don't seem to care about it.
I don't understand why the way you get or received mail had to change. Maybe it has something to do with security? No idea though but Windows 8 doesn't use pop any more and my isp doesn't use imap so I can't use the mail app which is a disappointment.