Is it possible to use two form on one website? (the form provided on couchcms) give two ID's to each form and handle different fields on each form? if so can you please link me to a tutorial?
Yes, we may have any number of forms on the same page.
Make sure to give a unique 'name' (please note it is 'name' and not 'id' for Couch) to each or just skip the 'name' parameter and Couch will automatically fill in a unique name.
I don't think there is any need for a tutorial. Just go ahead and place a second form on the template and it should work.