What I Need to Use BlogML?

In general there are some main requirements for you:

• Having access to your source and destination blogging tools. Some BlogML tools require you to install something on the server so this may be a problem if you're hosted by someone who doesn't like BlogML and doesn't install it for you!
• A BlogML tool for your source and destination blogging tools to export and import your content.
• Latest BlogML schema in order to validate your BlogML files against it to make sure they can be imported as expected.

There may be some other requirements for specific tools, though.