Thanks!
Tried again, there is no option for me to change using the online version. The "Credit for AMT Paid in Prior Year" option gets me to the same page as selecting form "8801" in the Tools section, with information about how much credit is applied this year and how much will be carried over to next year. I guess the desktop version will be my last resort. The problem is that I have already paid the online version and will have to continue using the desktop version in future years to allow correct carryover. Sigh.
