Configure your default live coverage settings at: /admin/settings/livecoverage. These settings can be overridden when creating a live event node.
Date FormatThe live coverage admin settings allow you to specify a date format using the standard PHP date types. For example, specifying h:i:s would output something like 04:34:12.
Refresh RateYou may also specify a refresh rate for your visitors. This is simply how often you would like your visitor's coverage content to refresh. Keep in mind that this can put additional strain on your server. Using a setting of 300 (5 minutes) is fairly standard, but decreasing the refresh rate to less than 120 can become fairly taxing if you have a lot of visitors.
Node type to use for updatesThe node type selection here allows you to specify which node type to use when creating the individual updates. These are processed using the standard Drupal APIs, so you may extend them using CCK, Taxonomy, etc. and fully manipulate the output using Drupal's theme layer.