Help on subsorts!

I have a medical symposium to do, that has Sessions and then individual talks or Presentations. Sessions I through VII occur on Day 1 of the symposium, Sessions VIII through XIII on Day 2, and Sessions XIV through XXI on Day 3. There are upwards of 10 Presentations for each session. I need to be able to add or edit the Sessions separately, so I built a table with columns: # CREATE TABLE Sessions ( SessionID int(6) NOT NULL auto_increment, SessionSeqNo int(6) NOT NULL default '0', SessionDay date NOT NULL default '0000-00-00', SessionShortName varchar(36) NOT NULL default '', SessionTitle longtext NOT NULL, SessionModerators longtext NOT NULL, UNIQUE KEY ID (SessionID), FULLTEXT KEY Topic (SessionTitle), FULLTEXT KEY Speakers (SessionModerators) ) TYPE=MyISAM; # Then I need to be able to add or edit Presentations. I built a table for the Presentations, with columns: # CREATE TABLE Presentations ( PresID int(6) NOT NULL auto_increment, PresSeqNo int(6) NOT NULL default '0', PresDay date NOT NULL default '0000-00-00', PresStart time NOT NULL default '00:00:00', PresEnd time NOT NULL default '00:00:00', SessionShortName varchar(36) NOT NULL default '', PresTitle longtext NOT NULL, PresSubTitle longtext NOT NULL, PresSpeakers longtext NOT NULL, UNIQUE KEY ID (PresID), FULLTEXT KEY Topic (PresTitle), FULLTEXT KEY Speakers (PresSpeakers) ) TYPE=MyISAM; # The two tables are related by SessionShortName, but rows in the two tables don't really match. What I need to do now is obtain results for display to the symposium website, which show elements of both tables in outline form: November 18, 2003(SessionDay) Day 1 Session I (Session ShortName): This is the First Session (SessionTitle) Session I Moderators(SessionModerators) Presentation 1 Start Time(PresStart) Presentation 1 EndTime(PresEnd) Presentation 1 Title(PresTitle) Presentation 1 Speakers (PresSpeakers) Presentation 2 Start Time(PresStart) Presentation 2 EndTime(PresEnd) Presentation 2 Title(PresTitle) Presentation 2 Speakers (PresSpeakers) Presentation 3 Start Time(PresStart) Presentation 3 EndTime(PresEnd) Presentation 3 Title(PresTitle) Presentation 3 Speakers (PresSpeakers) Session II (Session ShortName): This is the 2ndSession (SessionTitle) Session II Moderators(SessionModerators) Presentation 1 Start Time(PresStart) Presentation 1 EndTime(PresEnd) Presentation 1 Title(PresTitle) Presentation 1 Speakers (PresSpeakers) Presentation 2 Start Time(PresStart) Presentation 2 EndTime(PresEnd) Presentation 2 Title(PresTitle) Presentation 2 Speakers (PresSpeakers) November 19, 2003(SessionDay) Day 2 Session VIII (Session ShortName): This is the 8th Session (SessionTitle) Session VIII Moderators(SessionModerators) Presentation 1 Start Time(PresStart) Presentation 1 EndTime(PresEnd) Presentation 1 Title(PresTitle) Presentation 1 Speakers (PresSpeakers) Presentation 2 Start Time(PresStart) Presentation 2 EndTime(PresEnd) Presentation 2 Title(PresTitle) Presentation 2 Speakers (PresSpeakers) [Etc., etc.] Can anyone help? --Dave Shugarts