Now it works with Apache 2.2.x!
Just use suPHP 0.6.2
suPHP 0.6.2 has been released.
The following problems have been fixed with this release:
Just use suPHP 0.6.2

suPHP 0.6.2 has been released.
The following problems have been fixed with this release:
Features / improvements:* Double free() problem with certain versions of GCC
* Dead locked Apache processes when a script wrote more than 4096 bytes to stderr.
* Problems with PATH_INFO environment variable
* Apache 2.2 compatibility
* (Basic) mod_userdir support