Follow these steps:

Open a new word processing document.
Enter some or all of the data that you want on your cover (1st) page (or simply hit the return key a few times)
Select: Format->Stylist
Click on the Page style icon (fourth one from the left)
Double-click on the Page style called "First Page". The page style name should appear on the status bar below your document. It is also possible at this point to create your own first page style. You may close the Stylist now, if desired.
Select: Insert->Manual Break...
Select the button next to "Page Break". Then choose the style to use for the next page (pick one from the menu - such as "Standard").
Click OK.
Now you should have two pages. Put your cursor in the first page, then select: Insert->Header->First Page from the pulldown menus.
A header area will appear on the first page. Use the OpenOffice.org tools to insert whatever you want in the header area.