Go to the top of the right side bar where the Blog Archive is located.
Locate the post you are looking for and click on the link to go there.
Also see labels on the bottom of the right side bar. Click on those to see the posts they go to.
Also use the search box at the left top corner. Enter subject or name and click on the search button at the right of the search box to show posts. Scroll through multiple posts with the Next Posts link shown at the bottom of the last post shown on the page.