One more question about my Phoca Gallery. Since I need to change a few things in parameters and I need to make my images larger, if possible, couldn't I get this done better if I delete all my images

and reload them
AFTER editing the parameters? I understand that the size cannot be changed after you have loaded your images. So there's no point in my trying to change them unless I delete them first. Change parameters. Then reload them. What do you think?
Also, would upgrading my Joomla version make much difference in the quality of my images?
Thanks
pslane