InfoPath Dev

Doesn't InfoPath automatically come with Office 2003 anyway? So, if all users have InfoPath 2003 the form can be saved on a SharePoint site and connected to a list? The only way to make it a webpage is with MOSS 2007? Are there any webparts that will do the equivalent to MOSS 2007?

 They need to interact with the dat by adding it. Actually, I need the form to connect to a list within SharePoint but that is the next step...

 Can't I convert the XML somehow?

 Hi I have designed an Infopath form but I would like the data to be saved to a list in SharePoint. Is there a quick way of doing this? Would it be easier to design the form in the List functionality of SharePoint rather than InfoPath itself? 

 Is there a way to publish an Infopath 2003 form as a webpage in WSS ?