Yeah, none of the ones outside POK work.
There is a table called `merc_merchant_template_id` where you have to link the merchant to the list of available mercenaries.
This SQL will set up the liaisons in Qeynos, Surefall and the revamped Freeport with Default Racial Mercs. I do not believe any of the other vendors are in game.
Code:
REPLACE INTO `merc_merchant_entries` (`merc_merchant_entry_id`, `merc_merchant_template_id`, `merchant_id`) VALUES (2156, 1, 2156);
REPLACE INTO `merc_merchant_entries` (`merc_merchant_entry_id`, `merc_merchant_template_id`, `merchant_id`) VALUES (2159, 1, 2159);
REPLACE INTO `merc_merchant_entries` (`merc_merchant_entry_id`, `merc_merchant_template_id`, `merchant_id`) VALUES (383091, 1, 383091);
REPLACE INTO `merc_merchant_entries` (`merc_merchant_entry_id`, `merc_merchant_template_id`, `merchant_id`) VALUES (383100, 1, 383100);
REPLACE INTO `merc_merchant_entries` (`merc_merchant_entry_id`, `merc_merchant_template_id`, `merchant_id`) VALUES (3058, 7, 3058);
REPLACE INTO `merc_merchant_entries` (`merc_merchant_entry_id`, `merc_merchant_template_id`, `merchant_id`) VALUES (3060, 7, 3060);