browser-enabled form template???

Here is what I would like to do.... I would like to test out the "browser-enabled form template" for users to enter data into forms via a browser.

According to what I read on Microsoft's site, SharePoint Services 3.0 has to be installed for Office Forms Server 2007 to work.

Is SharePoint Services 3.0 the same as Office SharePoint 2007

I am unable to find a trial version of Office Forms Server 2007. According to this http://blogs.msdn.com/sharepoint/archive/2007/01/12/new-downloads-including-16-languages-of-office-sharepoint-server-on-msdn.aspx "No trial is available. Download SharePoint Server Enterprise Trial here to evaluate Forms functionality." Does this mean that once I download MS Office SharePoint Server 2007, the Forms Server is on there

Wow, can this be more confusing Someone please help! Thanks in advance.