Since the connection checking tool failed, it's not the schema in all likely-hood, but either your connection may be blocked at the firewall, or your user/password is not right.
Have you logged into the database with a database tool like heidisql or something similar?
my login - as it's provided with the tools
Code:
host=localhost
user=eq
password=eq
database=peq_1751
everquest_folder=c:\EverQuest_SOD
//everquest_folder this is for SPELL LIST SOURCING FROM SPELLS_US.TXT!! -- NEEDED IF YOU MAKE CUSTOM SPELLS
//for example - everquest_folder=c:\everquest
GeorgeS