Also, for a free and easy to use stitcher, Microsoft came out with ICE awhile back,
http://research.microsoft.com/en-us/um/red...groups/ivm/ice/ . It works much better than the stitcher that comes with Canon cameras. I always had issues using the OEM software, all my pano's you could see where they blended. Microsoft ICE was able to give me good results on all except one pano that I have tried with it.
If the 'multi-shot function ' is the panorama function then that should lock the exposure and focus (not sure about white balance). If it is not the panorama function then I would also try using that mode.
Also, normally find the brightest area in the panorama to take the 1st image (to lock the exposure to it) then start shooting. Just do not use that 1st image when building the pano. This normally keeps the highlights in check.
Also, another option is to use Auto or P mode (If you normally use one of those modes) and half click to focus and see exposure numbers (remember exposure numbers) then while 1/2 click press the MF button to lock focus. Then switch to M mode and set shutter speed and apeture to numbers shown when 1/2 click, also set white balance to daylight. Now everything is locked to shoot your images.
I never did use my pano mode on my P&S due to loosing 1/2 of the screen to 'align' the images. I did the method mentioned in the above paragraph. Just make sure you give enough overlap between images.
Tony