Yes, you can use the update.
No, it won't make your monkey type any faster.
Yes, there are even more improvements and features on the new version 6.
No, it's not like your present version wouldn't work fabulously without it.
Yes, It's available now.
No, my monkey doesn't type very fast, or very efficiently either.
Yes, I agree.... I need therapy.

Email me and tell me when you bought your version, from whom, when (if) you registered it, and what service packs you downloaded.