Hi, same problem here. I’m glad if somebody can tell me what I did wrong. I followed strictly the installation instructions until step 5.
I doublechecked the install directory with my FTP client, and the readme.html opens online at the expected location without any problems. Any of the php-files produces an error (using Opera) or a blank page (using Firefox).
https:// *my homepage url* /blog/wp-admin/install.php doesn’t work. At all.
I also noted now that every php-File from /blog and subfolders is redirected to /blog/wpadmin/install.php. And yes, I cleared my cache.
btw: Same problem seems to be reported also here:
https://www.ads-software.com/support/topic/340582