Why do some donors not appear on my forms or web site?
Donors will be acknowledged on printed forms or the auction web site only if the 'acknowledge publicly' option is set for the donor.
You can see and modify this on the donor details page:
On the donor list (click on Donors -> All Donors) it is shown as the Ack? column
You can modify the Ack? column directly from the donor list, either for an individual record, or for multiple records at once.