Use the advanced search. (not the fill in the blank above, but click on the link below ADVANCED search)

Then, if you can recall any of the key words... not sure you knew the dog's name back then... but you can put one (or a phrase if you are sure you said it) in " " in the search for... you can also add your own screen name on the next window area... and you can on the left select the main forum you wish to search, if you think you know where it was put...

I always click to view a bit of the post itself...

You need to determine the date/time period. I doubt you want only the stuff from the last week... so why not put as the time as how many months ago it was that you moved in, up until now or a week ago (so you don't get all the latest posts to sort through too.)

Let me know if you're confused by my not so scientific explanation