ok, mine work now. I did the Option 3 in the Sharp menu and it worked. The three files are used were the updater.sh from cacko, the initrd[1].bin-tkrom-2.5.1-slc7x0 from proto and the tools.tar from cacko. I put all those files on the root of my SD card and first did the flash partition to 27 MB and then flashed the ROM.
Now, I have the TKC ROM running on the partitioned C860. When I look at the System Info-]Version tab, under Linux Kernel it states \"Version 2.4.18-rmk7-pxa3-emb. Compiled by: (sash@sash). therefore, I am assuming I am using sash\'s kernel. however, I would like to try one of the faster kernels but I do not understand the differences between all of them and which ones are tested to run on the C860 (e.g. Sukoshi, Javaboy, Sash, etc.)