Been on a fitness drive recently (cycling and Taiji) so not had a chance to look further into my current issues and progress further :(
Currently I can get COGLinux built (2.6.16 and 2.6.22), but 2.6.22 halts during boot :( Need to try building under the old WinXP development environment, and if that works/boots ok, work out why the Ubuntu build fails. I'm thinking it somethings to do with the compiler, but who knows :(
PS: Installing lrzsz package in Ubuntu sorted out the minicom transfer issues, from previous post. Wiki has been updated (a while back) to reflect this..