Wow, I learn something new everyday. I only knew some of those lines from a pop song - can't remember the band.Campfire, if you want to use the filter functions in that way, I think you will have to enter it as a URL using the format: http://www.mudcat.org/threads.cfm?Title=FILTER_ TEXT&Age=DAYS_TO_SEARCH where FILTER_TEXT is the text you wish to search for and DAYS_TO_SEARCH is the number of days you wish to go back.
Please note that if you don't enter any text to search for, i.e. used http://www.mudcat.org/threads.cfm?Age=DAYS_TO_SEARCH, the operation is likely to time out and that the other search methods may prove to be more effective than the filter.
Jon