Oscommerce with Embedded Wordpress/All in One SEO Plugin

Need the following admin-side error identified and resolved in Wordpress embedded into Oscommerce store. "Warning: call_user_func_array() [function.call-user-func-array]: First argumented is expected to be a valid callback, 'Array' was given in /hsphere/local/home/nvbplayg/[login to view URL] on line 164". Displays when editing or creating a post. Project taker is to provide proof that the All in One SEO Plugin works without error as listed above. Currently entire wordpress site works, however an error does not allow the All in One SEO Plugin to display. Project bidder to accept payment escrow and released upon completion. May require modification of oscommerce side blog php file. Experience is required.