Oil pump o-ring leak...

Somebody a while back mentioned that there was sleeve kit that you had to buy in order to fix the famous oil leak from the oil pump. If anybody has any info on the part # for the sleeve and o-ring, could they please share it. And any special helps or hints on the fix. My leak is getting out of control.

Same problem as described here: http://www.automotiveforums.com/vbulletin/showthread.php?t=376633


Thanks in advance.

NAPA part numbers are as follows:
Sleeve kit 600-2501
Gasket set BA 0396295

This is for the 2.4L.