You can use an S-tag to your form in order to call the SSL seal template within the product. This would allow any future SSL certificate or logo changes to be updated on your site automatically. The S-tag syntax to use is [[S66:payment/verisign_seal.tpt]].

Geotrust seal can also be added with this script: <script language="javascript" type="text/javascript" src="//smarticon.geotrust.com/si.js"></script>