Activation Error for All in One SEO Pro Installation / Upgrading - All in One SEO Pack Forum

Hello and thanks for this great plug in.
We have been using your plug in for about 6 months and I yesterday I tried to upgrade to the latest version. It asked me to back up the database which I did, and then when I installed the new version it did something to the database and ever since then it spews out errors at the top of every screen which views our site.
Figuring that we owed you a donation for using it so far, and thinking that a fresh installation may solve the problem, I purchased Pro, downloaded it, deactivated and deleted the old version and then followed instructions to install Pro. And when I activated it, I got these error messages. They, too, display across the top of each WordPress page of our site in my browser, and are repeated in the WP dashboard Notes Panel for the Admin. Here's what they say: (WordPress 2.9.2.)

Notice: __ngettext is deprecated since version 2.8! Use _n() instead. in /var/www/vhosts/www.inbound-marketing-automation.ca/httpdocs/wp-includes/functions.php on line 2970
Notice: __ngettext is deprecated since version 2.8! Use _n() instead. in /var/www/vhosts/www.inbound-marketing-automation.ca/httpdocs/wp-includes/functions.php on line 2970
Notice: _c is deprecated since version 2.9! Use _x instead. in /var/www/vhosts/www.inbound-marketing-automation.ca/httpdocs/wp-includes/functions.php on line 2970
Notice: Undefined index: aioseop_migrate in /var/www/vhosts/www.inbound-marketing-automation.ca/httpdocs/wp-content/plugins/all-in-one-seo-pack-pro/all_in_one_seo_pack.php on line 536
Notice: Undefined index: aioseop_migrate_options in /var/www/vhosts/www.inbound-marketing-automation.ca/httpdocs/wp-content/plugins/all-in-one-seo-pack-pro/all_in_one_seo_pack.php on line 537
Notice: Undefined index: aiosp_enabled in /var/www/vhosts/www.inbound-marketing-automation.ca/httpdocs/wp-content/plugins/all-in-one-seo-pack-pro/all_in_one_seo_pack.php on line 691
Notice: Undefined index: aiosp_enabled in /var/www/vhosts/www.inbound-marketing-automation.ca/httpdocs/wp-content/plugins/all-in-one-seo-pack-pro/all_in_one_seo_pack.php on line 691
Notice: Undefined index: trackregistration in /var/www/vhosts/www.inbound-marketing-automation.ca/httpdocs/wp-content/plugins/google-analytics-for-wordpress/googleanalytics.php on line 617

To go to our site please point your browser to http://www.marketet.com. The Username to key in is "Gossy" and the password is "ourgate". Sorry it's a little difficult to get into, but this is V2 of the site and is now under construction. V1 is still live at our official address of http://www.inbound-marketing-a…..omation.ca, and to prevent Google from considering V2 a duplicate site, we ask for a login. The marketet.com site has its dns pointing at the WordPress V2 version and it's set in that hosting service as a domain alias.

Lastly, given that I did back up the old site's tables before upgrading to (i) the new version, is it not possible just to go back to the old tables? I think the problem may well have been caused initially by the fact that the V2 site is not running in the way V1 did, because we're not accessing it directly by its real url but are instead going through a 301 and then an alias? I probably should not have answered yes to the "update the database" question in these circumstances, should I?
Thanks!
PS. The error messages persist, even if the plugin is disabled.