I'm running Firefox and there is a way to upload larger files then I'm supposed to. If I upload a large file Firefox asks me if I want to terminate a script that can cause problems. If I click ok then the uploading proceeds. Sorry if I'm breaking the rules this way, but you can delete the files from the server after you have checked them out. It's mainly files for bug reports that are a little large sometimes. There is no way to get them smaller anyway.