You go to "Alphabets" at the top of the page. Go to page 2 and find the "B". Click on the gray area at the top of the "B" that says the letter costs $1.00 and another page will come up where you can add the "B" to your cart. Or you can wait until this font is finished and vote and request Cuties to vote to help you get the "B". Good luck
You get it back up by voting for it, go to the main page and click on the alphabets and you will see the one up now and below it shows all of them and you vote on the one you want but I think it is best to let most of the alpha go through and then toward the end vote to get the ones you need.