Urgent: OpenOffice Powerpoint

I am using OpenOffice, and when I make a powerpoint, it looks great. When I change the location of the Powerpoint file, the images all go corrupt. As in, all that shows is a white box with an X in the corner. What can I do to keep the images intact?

Thanks.

PS: Due Tomorrow

EDIT: Managed to do it. Can be locked.

Ah.. I'm not familiar with OpenOffice but it sounds like this works by "placing" images rather than importing them. To overcome this you should move all of your images into the same folder as the presentation (you'll probably have to insert the images into the presentation again, or "relink" them), and copy both the presentation and the images to a flash drive or something (wherever you want to put them) to keep them intact. This is because the images are not actually part of the presentation file as they would be in Microsoft Office PowerPoint; it's sort of like placing a link to them instead.