wfz, here's how you multi-quote. I started a thread on just this topic once, and discovered many methods, and this is the one I stuck with.
You see 2 things you want to quote. In FireFox you middle click the quote button on each to open 2 new tabs. In the first new tab, you hit enter a few times, then you go to the 2nd tab, copy it. Go back to the first tab, paste the 2nd one in. Now you can write your responses separately under each quote.












