I did this myself some time ago, but I found it easier to strip out the extraneous text in a word processor before putting it into Tinderbox. Applications like Nisus Writer Pro have more sophisticated Find/Replace, and it makes the job a lot easier.
Note that as your delimiter Highlight (yellow) - contains characters with regular expression meaning (here, the parentheses) we must escape them with back-slashes. Set the rest of the pop-over as desired and explode.