Very basically:
CODE
<MTEntries>
<MTEntryTitle>
<MTEntryBody><br/>
</MTEntries>
How many entries will be displayed (in your Main Index Template) will depend on the number of days you have set to display in Weblog Config | Preferences. If you want to be sure to display all of the entries, you could add in lastn="x" to the MTEntries tag, where x is a number greater than the number of posts you have.