eCATT - Materials needed.

Hi all,

I am a fresher to ABAP & eCATT,now i am learning eCATT,

now i have first hand knowledge about eCATT,

but cant exactly figureout certain things,

i have checked out tutorials and materials found on all websites,

I want materials on eCATT which explains every step in detail...(is siemens material available for it?)

thanks in advance.....