The picture of feet that you posted I expect is what came in your box. Brother lists a quarter inch quilters foot on their web site for that machine
the part number is SA185. Here is one on Ebay - in case you want to see what it looks like.
http://cgi.ebay.com/Brother-1-4-SA18...arms=72%3A1205|66%3A3|65%3A12|39%3A1|240%3A1318|301%3A1|293%3A1| 294%3A100