SuSE 2.4 Kernel and ReiserFS and others ?

hi ! Yesterday I download and try to install the Kernel 2.4 from the SuSE FTP site. What was my surprise when I try to set the options for my new kernel That the ReiserFS support can't be enabled !! so many other thinks ! ? Why ? How can I enable the ReiserFS Support ? and many other things that where enabled on Kernel 2.2.16 ??? Why are can't be choose Also From where I can find information about the new features and improvements on this new Kernel Release ? Also is there any web page or information from comparations between the Kernel versions ? Thanks --ed