i currently use a Nokia E51 for business and wondered whether installing MFE, what would happen to the contacts list/phonebook? Would they be overwritten with an email address list?

The reason why i ask this is because when i installed MFE, for some reason my phonebook was wiped out and replaced with a contacts list of all the email addresses i send to. I have checked everywhere on the phone but to no avail.

And has this happened to anyone else?

Suggestions and answers would be greatfully appreciated. :)