check your eqemu_config.xml file. It sounds like you don't have the right user/password/DB being assigned in it. If you used cavedude's installer pack4, the eqemu_config.xml file is wrong as it lists the db as "eq" by default instead of the actual database it makes which is "peq".
It should read something like:
<?xml version="1.0">
<server>
<world>
<shortname>Birthright [PEQ-Custom All Spells and Items]</shortname>
<longname>Birthright [PEQ-Custom All Spells and Items]</longname>
<address>WAN IP</address>
<localaddress>LAN IP</localaddress>
<loginserver>
<host>eqemulator.net</host>
<port>5998</port>
<account></account>
<password></password>
</loginserver>
<key>12345678</key>
<http port="9080" enabled="true" mimefile="mime.types" />
</world>
<database>
<host>localhost</host>
<port>3306</port>
<username>root</username>
<password>what ever you made it during MySQL setup</password>
<db>peq</db>
</database>
</server>