Is it just me or are things disapearing on Blogs??!!

I checked my blog everything seems to be there, I go to change some thing on my template and all the stuff I have put on it is missing. I also posted something and made a change in the template(with my video) and that's missing. I'm afraid that if I make a change now and publish my template every thing will be gone forever! I also noticed that Aprils Blog is missing quite a bit too. So does anyone know what's happing!!