Welcome to TP.
Please don't be offended, but to request a wanted item ( or to sell items) there is a specific "classifieds" section.
With only 5 posts I don't beleive that you have "rights" to access the sales for the moment but if you actively involve yourself within the forum, that situation will rapidly change and allow you to post a wanted classified requesting the tripod that you search.
I'm sure someone else ( such as the mods) will inform you better of the guidelines etc.
Enjoy the forum!