Well you could try the following and if that doesn't work, get the experts in
-- Set SA password to be blank
update tps_password set tps_password = 'D4-1D-8C-D9-8F-00-B2-04-E9-80-09-98-EC-F8-42-7E' where tps_guid = (select tps_password_id from tps_user where tps_name = 'SA')
Login with sa and a blank password and then use console to change it to be something you know