Arabic Form

There isn't any easy way to do this out-of-the-box. It will have to be done using custom JavaScript and CSS. Because it requires so much customization, I would just use your own form and then submit the data using server-side form post. http://developers.marketo.com/blog/server-side-form-post/

Leslie, assuming you're using an otherwise-standard Marketo form, you can render labels to the right with just CSS:

     .mktoForm .mktoLabel { float: right; }

     .mktoForm .mktoGutter { float: right; }

More adjustments can also be done with CSS, though complex reformatting would take JS too.

I disagree with Justin here about server-side form post.  I don't think that technique should be used on a public website because of rate limits.  Rather, you could use a totally custom form and the Make a Marketo Form Submission in the background technique. I've been using this technique for a long time to post Drupal, DotNetNuke, and totally custom forms to Marketo in a scalable way.