At the top of each thread, there's a section of links...look just below the "search" link. When you see "Thread Tools", click on that...then click "Subscribe to this thread"
Then when you're ready to go find this thread again...
Look towards the top of the page and click the link "User CP" (stands for Control Panel). The first header in the middle of the page is "New Subscribed Threads". If nothing shows up, look to the right, click on the link "View All Subscribed Threads" and bingo...there ya go, all the threads you saved.
Hope that helps.
(Sorry, I don't know the techie terms for the headers and banners and things mentioned above.)
Where we've been:
2000 Rockwood Roo M-18 Hybrid
2006 Dodge Ram 2500 Auto 5.9 Diesel
Gone but not forgotten -1986 Rockwood 1003 PUP