Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Yeah another duplicated process is running in the background, either end that or simply restart your pc, and try launching it again.
Don't see why you couldn't. A simple texture replacement could do the trick
Matrix cheers