Hello @Rich!
I did it right after I installed Lighttpd and php5!
Here is my lighttpd.conf file:
server.modules = (
	"mod_alias",
	"mod_compress",
 	"mod_redirect",
	"mod_access",
#	"mod_auth",
	"mod_setenv",
	"mod_cgi",
	"mod_fastcgi",
#       "mod_rewrite",
)
server.document-root        = "/home/tc/www"
server.upload-dirs          = ( "/var/cache/lighttpd/uploads" )
#server.errorlog             = "/var/log/lighttpd/error.log"
#server.pid-file             = "/var/run/lighttpd.pid"
server.username             = "tc"
server.groupname            = "staff"
index-file.names            = ( "index.php", "index.html",
                                "index.htm", "default.htm",
                               " index.lighttpd.html" )
#url.access-deny             = ( "~", ".inc" )
static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" )
## Use ipv6 if available
#include_shell "/usr/share/lighttpd/use-ipv6.pl"
dir-listing.encoding        = "utf-8"
server.dir-listing          = "enable"
#compress.cache-dir          = "/var/cache/lighttpd/compress/"
#compress.filetype           = ( "application/x-javascript", "text/css", "text/html", "text/plain" )
#include_shell "/usr/share/lighttpd/create-mime.assign.pl"
#include_shell "/usr/share/lighttpd/include-conf-enabled.pl"
#### mimetype mapping
mimetype.assign             = (
  ".pdf"          =>      "application/pdf",
  ".sig"          =>      "application/pgp-signature",
  ".spl"          =>      "application/futuresplash",
  ".class"        =>      "application/octet-stream",
  ".ps"           =>      "application/postscript",
  ".torrent"      =>      "application/x-bittorrent",
  ".dvi"          =>      "application/x-dvi",
  ".gz"           =>      "application/x-gzip",
  ".pac"          =>      "application/x-ns-proxy-autoconfig",
  ".swf"          =>      "application/x-shockwave-flash",
  ".tar.gz"       =>      "application/x-tgz",
  ".tgz"          =>      "application/x-tgz",
  ".tar"          =>      "application/x-tar",
  ".zip"          =>      "application/zip",
  ".mp3"          =>      "audio/mpeg",
  ".m3u"          =>      "audio/x-mpegurl",
  ".wma"          =>      "audio/x-ms-wma",
  ".wax"          =>      "audio/x-ms-wax",
  ".ogg"          =>      "application/ogg",
  ".wav"          =>      "audio/x-wav",
  ".gif"          =>      "image/gif",
  ".jpg"          =>      "image/jpeg",
  ".jpeg"         =>      "image/jpeg",
  ".png"          =>      "image/png",
  ".xbm"          =>      "image/x-xbitmap",
  ".xpm"          =>      "image/x-xpixmap",
  ".xwd"          =>      "image/x-xwindowdump",
  ".css"          =>      "text/css",
  ".html"         =>      "text/html",
  ".htm"          =>      "text/html",
  ".js"           =>      "text/javascript",
  ".asc"          =>      "text/plain",
  ".c"            =>      "text/plain",
  ".cpp"          =>      "text/plain",
  ".log"          =>      "text/plain",
  ".conf"         =>      "text/plain",
  ".text"         =>      "text/plain",
  ".txt"          =>      "text/plain",
  ".dtd"          =>      "text/xml",
  ".xml"          =>      "text/xml",
  ".mpeg"         =>      "video/mpeg",
  ".mpg"          =>      "video/mpeg",
  ".mov"          =>      "video/quicktime",
  ".qt"           =>      "video/quicktime",
  ".avi"          =>      "video/x-msvideo",
  ".asf"          =>      "video/x-ms-asf",
  ".asx"          =>      "video/x-ms-asf",
  ".wmv"          =>      "video/x-ms-wmv",
  ".bz2"          =>      "application/x-bzip",
  ".tbz"          =>      "application/x-bzip-compressed-tar",
  ".tar.bz2"      =>      "application/x-bzip-compressed-tar"
 )
fastcgi.server = ( ".php" => (( 
			"bin-path" => "/usr/local/bin/php-cgi",
			"socket" => "/tmp/php.socket" 
			))
		)
But the problem about it failing continues... And I tryed to change it from positions in the file and nothing different happens...