I think it's you who should check your facts. I have installed antMiner_S320140826.bin (latest firmware on the Bitmain S3 support page) and am pretty sure that it does include 100M and 500M because I am currently using 243.75M. If you're still not convinced, then that's your problem; sorry for trying to help out. This was posted on the prior page, just before your post:
https://bitcointalk.org/index.php?topic=671189.msg8882222#msg8882222Just for shits n giggles becaise it proves ME right about 243.75, so whos checking whos facts now ?
https://bitcointalk.org/index.php?topic=699064.msg8370071#msg8370071(Here are highlighted in red the lines with new frequency
not included in the stock firmware.)
MBW, you are thinking of the next-to-latest firmware. The last one before the S3+ firmware does not have the 243.75 setting, but the one for the S3+ (and S3 works fine with, too) DOES have 243.75. I have one S3 with each.