If you go into the offending file and replace the "replaceMarkupInFields" with this function, it will fix your problem. I don't know if there is anything else that won't work with 2.6 though. I might make a 2.6 compat pass later, depending on if I have time to set up a testing environment in the next couple of days 
Code:
def replaceMarkupInFields(fields, markup):
result = dict()
for field, value in fields.items():
result[field] = replaceMarkupInField(value, markup)
return result
Edited: 2011-02-21, 9:10 am