search this board, there is a link here that you can follow to download a app (OSX only, i think), which can convert the pics, etc, into a data URL that is readable by safari,
then you need to add that produced URL as bookmark to your safari (IE on windows) and sync it to iPT.
finally you can open the pic through safari on your iPT without losing resolution.
sounds a hassle? yes It IS. but its the only way you can store pic at original res. at least for now.