Wordpress on subdirectories

[copywryter]

I have a wordpress installation running on venture4change.com. I used the application manager to create a second install in a subdirectory. Worked just fine. However, that subdirectory was simply a sandbox to play around in (for buddypress). I deleted that folder via FTP, but when I go to install wordpress in a new directory I'm told that wordpress is already installed. The folder and files do get installed, but I can't log in -- I'm redirected to the login for venture4change.com

Looks to me like an mysql issue, but I don't have the guts to edit the database myself, and I certainly don't want to damage the files or accessibilty of venture4change.com

Help?

[jeremya]

There are ways to determine which database entries are for your installation. If you chose the default install options you will likely find that the tables are labeled with a prefix that matches wordpress in some way like WP. If there is a second instance it may just be adjusted numerically but still have the WP prefix. The later the number, usually, the later the installation instance. To be sure I would look at your existing files for the prefix specified in the config.