Via Stacke: InfoPath and MOSS
Here's a nice step-by-step walk-through for creating an InfoPath Form Library with a custom InfoPath form which is connected back to the InfoPath Form Library in MOSS.
The article gives some nice explanation on how to have InfoPath Forms saved back to your MOSS Forms Library with a custom name. This name can include the date with a title of your choice. There are also some very useful InfoPath troubleshooting tips.
Once the Form is published, you can allow it to be filled out over the web via web browser using Content Types and a little configuration of the Document Library (“Allow management of content types?” to Yes. Since we want to have the form accessible via the web client, we need to select Display as a Web page under “Opening browser-enabled documents”.)