If you want to control the entries on your index by last number of entries instead of last entries in X days, then you can just refer to this text, taken straight from the MT help file (From Weblog configuration, Preferences):
Number of days displayed
The number of days displayed by default on your index templates. Note that you can override this behavior in your MTEntries tag; this is merely the default, used when you do not supply MTEntries with any attributes.
For example, if you wish to display the last 15 entries that you have posted to your weblog, you could use the lastn attribute to MTEntries instead of relying on the default behavior:
<MTEntries lastn="15">
...
</MTEntries>
Note that, if you choose 7 days, 7 days means the last 7 consecutive days, not necessarily the last 7 days on which you posted an entry. So if you have posted on just 3 of the last 7 days, only the posts from those 3 days will be listed on your main indexes.
Note also that a "day'' is defined as the time from 24 hours ago to now, where "now'' is the time at which you are rebuilding your site. It does not mean from 12 AM to now on the current day. As an example, if you are including 1 day on your index and you posted an entry one day at 6 PM, that entry will show up on your index until the next day at 5:59 PM.
This is a required field.
desired effect: now your page will never go blank undesired effect: less of an incentive to actually post.
Let's face it. Nothing screams "update me!" better than an empty page.
Posted by: Dan at November 6, 2004 03:39 PM