The SVN-database already comes with a few accounts. So you might want to look into the "src/server/database/mysql/accounts.sql" files to see how they were inserted:
...
#
# Dumping data for table accounts
#
#password is "keith"
INSERT INTO `accounts` VALUES (1,'vengeance','8dd9fa632ca161d0ca1929a4d99cbe77','2006-06-24 00:47:50','0000-00-00 00:00:00','127.0.0.1',30,'','US','M',1980,'A',0,0,'none','',0, '', '', '');
#password is "guest"
INSERT INTO `accounts` VALUES (3,'guest','084e0343a0486ff05530df6c705c8bb4','2003-07-22 00:31:36','0000-00-00 00:00:00','127.0.0.1',30,'','US','M',1980,'A',0,0,'none','',0, '', '', '');
#password is "andrew"
INSERT INTO `accounts` VALUES (5,'acraig','d914e3ecf6cc481114a3f534a5faf90b','0000-00-00 00:00:00','0000-00-00 00:00:00','',0,'','US','M',1980,'A',0,0,'none','',0, '', '', '');
...
Maybe it's also worth to have a look at the documentation for the
AccountsTable in the wiki for an explanation what the fields in that table do.
Not really sure what is needed for the md5 password....but you can try to create one with "echo <password>|md5sum" in a shell and see if it works.
So, basically it should be something along the lines:
mysql -uplaneshift -p
> INSERT INTO `accounts` VALUES (<unique ID>,<name>,<MD5-password>,'0000-00-00 00:00:00',<Acount-creation-data>,'',<GM-Level>,'',<country>,<gender>,<birth-year>,'A',0,0,<additional-comments>,<real-name>,0, '', '', '');