@ Halo: To add the 'Solved' feature, click on "Add Reply" from the topic page, then click the "Manage Topic Poll" button at the top, above the message body area. In the 2nd edit text line, type "Solved" (under the 'optional' line). In the 3rd edit text line, provide whatever information you want - who solved it, post #, URL for the post.
The full directions are available in the "Important: Read Before Posting" information, including the directions for linking to a specific post. (This usually takes a couple of tries for most people.)