This screenshot should explain it, you just need to click on the part which I have circled.
I bow to thee, Sire!To get that ... click the no of replies hyperlink next to the name of the thread in any view.
This gives you a popup window with the name of the members and the no of posts they have made in that thread.
Click your no of posts hyperlink next to your username on that list and what you will get is the list of the posts that you have made in that thread.
The maximum no of posts it will display is 500 for each thread.
If you have made more than 500 posts in a single thread and need to access older posts than you will have to manually search for the earlier posts through advanced search.