They aren't so much a pain when you've re-created them with vectored graphics and can modify every layer.Hmm these where a pain to work with for whatever reason.. At any rate try this on for size..
View attachment 32809
Not sure if this will work for you or not as editing this sprite sheet wasn't yielding expected behavior
edit: havent optimized it because i wasnt sure if it was even what you needed. Was just a quick edit to see if they would work for you.
edit2: aha.. they're alpha 8 transparency thats the problem i was having