I wanted to install a fresh Magento so:
After copying gzip 1.9.2.1 full installation to ftp folder, I changed the premissions for all files in root magento folder /shop/ to 644. After going to the address, installation page shows with terms of use and after marking the check mark I wanted to click continue, but it doesn't respond.
Can't install Magento on a same server where 1.9.0 and 1.4 were installed.