TomatoUSB

Hi to all,
I searched a lot the forum and google before and I couldn't find my answer for this.
I have already tested a lot of tomatousb K24 firmwares, but I can't see the media server in web interface menu under the USB and NAS.
Right now I have tomato-NDUSB-1.28.8754-Std installed.
So my questions are:
Is there something that I do wrong?
Is there any firmware that support media server for this router?

Thanks in advance for your help!

Its probably not included because of the limited space - 4MB flash.