I was wondering if anyone has had problems with this contrib and "big" stores. I have *almost* 26,000 products, so my sitemap generates to about 9MB uncompressed. I also have a smaller store, with about 55 products. I submitted the sitemap for the smaller file, and google gave it the "OK", however I've RE-submitted my LARGER store's sitemap multiple times, with different options (gzip, not, etc) and I keep getting an "Invalid Date" error for that sitemap. And of course, google doesn't give a line number or anything, so I can't just go in and fix it if it's one page or something coming up wrong. Any ideas, suggestions, or similar problems?