image caching for .net label background.

Hello Everyone,

i need some help with image loading. i have a max rollout with 15 .netcontrol labels.
all these labels have background images.15 images are load at a time from 60 fixed images . can i make the loading process faster by saving a thumb of these images to a cache folder? or somehow can i keep them in memory when the rollout opens?

any suggestion is much appreciated.i have just the very initial knowledge of .net