Over at the Gmail blog they have announced that the ability to import mail and contacts will now work with older accounts and not just new Gmail accounts. The blog site provides the following information:
A few months ago, we added the ability to import your old mail and contacts to Gmail. We made this feature available for all newly-created Gmail accounts first, since people new to Gmail benefit most from being able to move their stuff with them. Friends who wanted to use Gmail but kept telling us how painful it would be finally made the switch!
But many old time Gmail users (including us) also have old accounts lurking. Often, these accounts predate Gmail, and occasionally we have to log into them to look at some old confirmation email or find the email address for someone with whom we’ve lost touch.
Now, with just a few clicks anyone can copy all of that to your Gmail account. It’s easy — just go to the Settings > Accounts & Import page and click “Import mail and contacts.” A window will pop out to lead you through the short import process. If you want us to continue to forward any new mail your other account gets for 30 days, we can do that too.
Copying mail over usually takes a couple days, occasionally up to a week — but eventually it all arrives. And once it’s done, you can forget your old account and enjoy having everything in one place.
Hopefully this will help us older Gmail account users.