So, for example, if you wanted to send me a text message and your username on Live Journal is "ann15warsaw72", then that's all you would need to write in the "From" field.
Use the underscore character in place of a space. For example: "for_your_love" instead of "for your love".
Happy texting! Send me a message!! :) (To send me a text message, go to my user info page, and click on the link you see there.)