PDAVIET doesn't have cooker for FLAME yet, you may try your luck by using the kitchen I posted here
http://pdaviet.net/showthread.php?t=27862 , The Rom is WM 6.0 build 1948. By usng this kitchen and that Rom you can start your own cooking, just put the rom file
diskimage.nb0 in to ROM folder of that kitchen and run dumpfiles.cmd , there will be 2 folder (OEM & SYS) generated => that's the full kitchen. When you have a kitchen 6.0, it's easy to create a 6.1 one . Inside my kitchen there are some guides about how to cook, read it and try it if you want.
Good luck,
PS: about WM 6.0 or 6.1 , I think you should choose 6.1 Rom as it fixes the sleeping beauty problem