How can I tie a form to Zoho Campaigns? & 2 more questions.

How can I tie a form to Zoho Campaigns? & 2 more questions.

I have a landing page I'm standing up and I don't know how to embed a form that ties into emails sent from Zoho Campaigns.  Like if they click Send on the form I have, how do I have the Campaigns tools score that the customer opened and filled out the form? 

I have additional questions about the form tool as well.  I chose a form that has pink and black rollover images for the submit and reset buttons on the form.  I need to change the colors of these rollovers, but the CSS edits I'm making to the landing page are not changing the rollover colors.  I also want to remove the Reset button since it won't be necessary for our needs.