if the modem is more than 16MB, it won't work.
sbradymobile has a fix for that.
and alroger has a new build that has the fix in the nightly thread
Increasing the size of the modem partition as well as the system partition had been on my todo list, was a lil busy over the weekend.
Also, you can check /proc/mtd (`cat /proc/mtd`), if it says path doesnt exist then you're on a BML ROM, else MTD.
Alternatively, you can also check mount (`mount | grep bml` or `mount | grep mtd`)