Its fairly straight forward to fix the .wps to meet the new RTC token standards. Previously the date/time codes where held between %c and c. To change it, simply remove the trailing c and put %c in front of every alphabetical letter that was in between, so in your case:
%cl:M pc
%ca, b e, Yc
would become
%cl:%cM %cp
%ca, %cb %ce, %cY
Hoped that helps.