If the install gives a filesystem permission problem. Please talk to your admin and ask them to allow the php process to have full access to Magento. You can also do a quick unsafe fix to allow all access.
chmod -r 0777 ./<your_magento>
In some cases you may also need to change the file ownership security settings to allow the webserver application access in modifying the files. For instance you may need to change access permissions to allow the "apache" user to be able to read & write files.