Level 47 requires among other things, to receive 25 comments on a blast.
To create a blast, click MY, the Blasts. There are only a few limitations on a blast compared to a MuMM. You can't use profanity, and you can't promote anything outside of Fubar. Ask for what you want, or put something to stand out. When your blast becomes active (can happen in a matter of seconds like mine did just now, or a few hours) you will receive a notification message:
To get the blast link use the following image to see where to get it. Simple as that.
Many people have their comments set to be moderated (they need to be approved) or only friends can comment. It might be a good idea to change your setting to open it up to everyone and not moderate. Here's how.