I was able to modify the style sheets enough to make everything legible while still following a decent, uniform theme. I'm not sure if the visible color in the transparent GIF used as a background image in the "entry" tables is quite right, but I think it's pretty close. (^*^)
Take a look! http://aekiy.livejournal.com/
People leaving comments on my journal will no longer be blind, either. All input fields have a black background color that works nicely with the scheme and makes everything plainly visible.