All In One SEO settings missing after WPMU migration

Not sure if this topic belongs here, but it is related to the SEO Pack plugin …

I just migrated a 3 yr. old WP blog to WPMU. The site ran the standard AIOSEO plugin. After migration and activating the sitemaps/seo pack, all my SEO settings are missing from every post. [sigh]

I have plenty of db dumps. Is there any way to restore these settings via MyAdmin or other method?

Any help is greatly appreciated. Thanks!