I did the same thing i wanted to buy the gift certificates but i couldnt find them.
So instead I did a yahoo search typed in "Astraware gift certificates" and it came up with an old page that had it were you could buy it.
After a few days i recived my registration numbers but they didnt work so i emailed astraware and they said that they stoped with the gift C.
But they gave me codes for the three games i wanted to get anyway.
All in all they were EXTREAMLY HELPFUL and they did get me the three games i wanted for 29.95 or what ever the gift cards cost.
Anway the link i used was:
http://www.astraware.com/gift/info.php
But they let me pick any of the games that were in the 14.95 range i was not limited to only the games shown on that link.
YES INSANIQUARIUM is definatly ment for stylus play! It is sooooooooooo much easier to collect the money, sometimes i just circle my stylus around to collect money real fast!