1. Can ad posters add their URL.
Yes, they can add url inside description text field. To convert urls to clickable links select “Convert text urls to clickable links:” checkbox in “Settings” -> “Ads” page from Admin panel. Also you can add separate custom text field to ad, but currently it will stay as regular text. in future we plan to add url custom field so it will convert urls to clickable links in custom fields.
2. As well can this script be used for general ads.
Yes, script is built for general ads and can be customized to present property, vehicles, job ads with use of custom fields. you can see it in our demos by visiting houses for sale and cars categories. Look at different custom fields.