Where can I find the LEGO fire dept. logo in high resolution or in vector format I want print a high resolution version of the Lego fire department shield (the shield with three flames that is used on all Lego fire trucks). When I search with Google, I find mostly low resolution images.

The best would be a vector image (like SVG) or a high resolution bitmap image (PNG or the like). Has anyone created a high resolution image like this?
Going on advice from InkBlend I converted the logo to a vector graphic from a sticker sheet scanned in for the 7945 Fire Station set on BrickLink.

I used VectorMagic to convert the file and automaticaly create paths. The SVG vector file can be downloaded here. If you don't have an image editor that supports vector editing, you can also download a high-resolution PNG graphic (267.33 kB).

You could also try scanning in a sticker sheet from a set that has the sticker. With Illustrator, Photoshop or any other similar image editors, trace around the design using a pen tool and fill in the colours. Using the scanned image as a reference. 

If you're having trouble finding a suitable image, I would also recommend looking at the LEGO City product page for wallpaper downloads and illustrations.