How to install wordpress with other script in the same directory

Why would you need to have to separate WordPress installations in the same directory?

You cannot have two instances of WordPress running in the same directory. If you wish to rebuild the site but retain the position in Google you can use 301 redirects to do so.

I know of no way to use two separate CMS systems in the same folder. Since most content managements use commonly name files you’d have to severely modify one. Here’s a link on 301 redirects

http://www.google.com/support/webmasters/bin/answer.py?answer=93633