The R215 should fix the issue on # of days but if Mary's Ad-aware SE is still showing the # of days, you can try:
1. Reboot the laptop or relaunch Ad-aware SE only
2. Re-download the definitions R215 from http://www.lavasoft.com/single/mirror_download.php?f=948DEWk12
Does her AAW is configured to keep old defs?
If so, try to uncheck that option before overwriting the old file.
Double-check the date of the defs.ref, see if she has the date it was released (Jan. 23, 2008)
Also make sure the checksum is the same as MD5 checksum for defs.ref is 6436ee4d5979f00fe6244e4cbdd1c7d8