How are the forms in PetSite v1.0 handled?
All of the forms in PetSite v1.0 require FormMail v1.6 or later to run (with the exception of the built-in search engine). FormMail consists of a single script, few parameters to configure and is very easy to set up. Most hosts already have FormMail or another form-processing script pre-installed. Any of them will work.