LG L1400 / C1400

I use http://coolservice.dk/en/compatibilities.php to send my phone graphics, ringtones and games. The games and ringtones work fine, but the wallpapers always have a white border around them. I've tried sending different sizes, and even though the whiteness size changes, it never fills up the whole screen. What should I resize the graphics to?

Also, does anybody knows sites with free java games in jad format? I've found a couple, but nothing really great.