Hey there, Jon! Nice to know you’re out there. You’re right; I shouldn’t sweat this upgrade, and wouldn’t, except it looks as though the shift from Flash 7 to 8 may be pretty substantive.
But whatever. I’ll either get it or I won’t. I emailed the customer service folks at Macromedia, who helpfully told me, “heck, go ahead and apply for the free upgrade anyway. I can’t promise you it’ll work, but it’s worth a try!” So why not.