The Customize Form button in the List Settings page lets you customize the list form using InfoPath 2010 (if InfoPath 2010 is installed on your computer and you are running SharePoint Server 2010 Enterprise). If this button is not working, your site is not trusted by your computer and that’s why it is not letting you open up the form in InfoPath. Check out the animated image below to see how you can add your site as a trusted site.

In the SharePoint 2003 world, when you wanted to add web parts to a page, you would get to pick it from an Add Web Parts Task Pane that would open up in the browser on the right hand side of the page. In the new and brave SharePoint 2007 world, however, you get a Add Web Parts dialog which is easier to work with and allows you to add multiple web parts at one time.

This is definitely an improvement over the old ways of doing things. You would in fact feel the need for the old interface for only one of two reasons:

1. You need to view and access the web parts that have been Closed on the web part page.
2. You miss doing things the way that you had gotten accustomed to

Whichever is your reason for wanting the old interface back, the good news is that it is still available. In fact, it’s right in front of your eyes: Literally! In the image above, there is a link at the bottom which states Advanced Web Part gallery and options. When that link is clicked, the old Add Web Parts interface comes to life. In addition, you get access to your Closed Web Parts gallery. So there you have it!