This is a way to search within posts on the Forum. There is lots of very useful information "hidden" within topics, and this way might help you find exactly what you are looking for!
(With thanks to Kim for the way to locate this info):
First you go to Portal which is to be found third from left under the Anal Fissure Support Forum header.
On the lefthand side when you are in Portal is a column named LATEST TOPICS.
Go down from the LATEST TOPICS to the SEARCH there, and check the Inside Google option (the second option) and "Display Results as Posts". You should find that this works very well for finding text within posts. Give it a try!