Basically, what EntAllat is saying is that telling us "it didn't work" doesn't tell us anything. It's like going to the doctor and telling him or her "I don't feel good" and saying nothing more about what's wrong with you. Is it your head? Your stomach? Pain? Nausea? Fever? Sinus congestion? Big toe feels like it's going to fall off?
Just like the doctor, we need a place to start in order to figure out what's wrong, so if you can copy/paste any error messages and tell us what you can about your browser (IE? Firefox? Which version?) and your operating system (Mac? Windows? Windows 7 or Vista? or what?), we can start to decode the "symptoms" and figure out how to fix it.
REGARDING POSTS/REVIEWS DISAPPEARING:
I cannot say this enough. Use Firefox, and download the LAZARUS ap. If you have Lazarus, you can recover your posts and reviews when they disappear on you. Just right click in the box where you type your message. A little icon with an ankh will appear, with the first few words of what you were typing. Click on the first few words, and -- TING!!! -- your message reappears without having to retype it or the frustration of having it lost forever.