Shoutbox

code:

---

RewriteCond %{QUERY_STRING} ^id=pack&id2=([0-9]+)$
RewriteRule ^$ /soundpack.php [R]

---

Is a lot closer but still not close enough I'm afraid.  You can't match a query string question mark by using \? it treats it as a literal question mark in the file name.

You could just redirect using php could you not?