One thing that has always been a bit of a thorn in our side is having to maintain two versions of Awasu, one for Windows 98/Me and one for NT/2000/XP. The reason for this is explained here.
Around 10-15% of the downloads of the free version are for Windows 98/Me (:eek:) but there are virtually no paying customers (I think there's just the one - a big hello to you, whoever you are! :-)). There are a number of small issues in the 98/Me that, while not show-stoppers, are not something that we like to release in something that people are paying for. All of these issues are caused by bugs in third-party products for which it's basically impossible to get fixes for because Windows 98 and Me are just a distant memory for most companies.
So, from 2.2, we are dropping the paid versions of Awasu for 98/Me but will continue to provide the free version (here's the reason why). If you really want a copy of the Advanced or Professional Editions that will run on Windows 98/Me, please drop us a line and we'll sort out a special version for you.