Will there be a fix for old WordPress installs for multisite functionality?

I have wordpress blogs that are older than the 30 day limit. I want to upgrade them to offer multisite, but the only option is to use subdomains. If you host on Godaddy this is not an option.

I have tried several different things. I have created a fresh install of 3.0.1 and imported my data from the old site. I then went into the Settings > General and changed the site and blog URLs to the new domain name and pointed that domain to the new sub-directory. But when I tried to update to multisite, it said my site was too old (now infamous 30 day error…).

I have run out of ideas and have literally tried everything. Are there plans to have future releases that will fix this? I am thinking of just waiting for help to arrive.