He's probably running a Symantec or McAfee product...either of those 2 hog programs could account for 28 processes and 460 meg paging file.
Last time I saw a Windows XP paging file under 200 was on a fresh of Windows XP SP2...that was in March when I built the system I'm using now...load up the SATA, chipset, audio and video drivers and it went over 300.