Hello all! I have just setup a forum for internal use at a small farm. I have pre-posted topics with tags and the tags are structured as a combination of "forumslug-xyz". I need to do the following:

• Show an "Add Topic" button on the search results page if the search is by Tags(possibly by looking at the URL for wpfin=tag!?)
• From the Tag used in the search search, get the ForumID of forumslug for selecting which forum to post the topic to
• Fill the "forumslug-xyz" in the Topic Tag in the editor automatically.

Any suggestions or ideas how I can go about doing this? 

Thank you!