The code I pasted was the code that was originally in the .htaaccess file. I was hoping you could help me along with the correct rewrite rule (similar to what you did above) where my link is only the threadid alone and not filename and threadid. That was why I gave the example. (/Forums/ssd-beginners-guide-discussion/1830.htm)

To be clear, I want to delete that code and redirect to the original urls and ensure seo is proper.