trying to install, but hangs on database install

I am trying to install zen cart on a linux/unix system. I have a few warnings (yellow), but since I don't know what to do about them, I figured I could ignore them. I have some red errors, but since they deal with curl and ssl, and I will not be needing those, i figured it was safe to ignore those as well. I click install, I get the page with the database entry. I enter my database info. If I putin a wrong password, login, or db name, I get errors that it can't connect. However, if I enter everything right, I go to the next page, which says "Installation In Progress..." That's all it says. There is a little "Done" in bottom left hand corner of my browser window, telling me that the page has loaded completely. There is nothing else to do, and nothing happens. I can wait forever, and it will not do anything. I check my db on my server, and it still has no tables (although I don't really know what the install is supposed to do). I have tried re-uploading the files, and that didn't help at all. What could be wrong?

redownloading, re-unzipping, and re-uploading to server seems to have fixed it. had to use a different ftp program.