Contour makes creating contact forms, entry forms and questionnaires just as easy as using Word. You won’t need to write a single line of code. Instead, you can create, edit and administer your form via a user interface that is a fully integrated part of Umbraco.
Check out the product page for more details. http://umbraco.com/products/more-add-ons/contour
To install on Umbraco 6/7 latest
Either install directly from the umbraco repository, or install the UmbracoContour.package3.0.29.zip as a local package under developer / packages in the umbraco backoffice
To install on Umbraco 4 latest
install the Contour UmbracoContour.package3.0.29.V4.zip as a local package under developer / packages in the umbraco backoffice
For older version use the following rule
For version lower then 4.7 use 1.1.9 for version between 4.7 and 4.10 use 3.0.6 for everything else just use the latest stable
Download the UmbracoContour_3.0.29_update.zip and unzip its contents in the root of your website, installation guid is available as a pdf below
Upgrading from 1.x to 3.x
Since there are some schema changes between version 1 and 3 your db will also need to be updated, you can execute the upgrade script by requesting the page mysite.com/umbraco/plugins/umbracocontour/upgrade.aspx after requesting that page your schema will be updated and you'll have a new insert form macro in the developer section.
If that fails you can also run the sql manually, the scripts can be found on the source code tab below
Most recent docs can be found here http://our.umbraco.org/projects/umbraco-pro/contour/documentation (includes install/upgrade, editor, dev docs).
Older developer docs are available below as a pdf.
Troubleshooting and FAQ
Is available on http://umbraco.com/help-and-support/customer-area/contour-support-and-download.aspx
28/4/16 - 3.0.29
Fix from a Gold Partner support ticket - Fixes when editing values for a record via the backoffice that values stored in a dropdown & datepicker show the correct values rather than blank values
Overview of the different versions and changes can be found here: http://nightly.umbraco.org/Umbraco%20Contour/changes.txt
Details on coming versions and know issues can be found on the issue tracker at http://issues.umbraco.org/issues/CON