ftp://128.237.157.9/linux.out-of-date/kernel/people/akpm/patches/2.6/2.6.15/  direct

[DIR]2.6.15-mm4/  direct  329+ twin directories
[DIR]2.6.15-mm3/  direct  333+ twin directories
[DIR]2.6.15-mm2/  direct  172 twin directories
[DIR]2.6.15-mm1/  direct  168 twin directories