Try to install MLM manually. You can do that with a FTP software like Transmit, Fetch, CoreFTP… This how you have to proceed:
1.- Open the lm/lm_settings.php file with a text editor.
2.- Edit the script settings and save (each setting is explained in the file). [1]
3.- Upload the ‘lm’ folder to your FTP server (in your public folder). [2]
4.- Use your FTP software to CHMOD the ‘lm’ folder to 777 (or 775 or 755). [3]
5.- Enter the ‘lm.php’ full URL and your user ID and password to MaxBulk preferences.
6.- If you have selected to use mySQL run the script with the ‘Init’ command:
http://<script_path_here>/lm.php?cmd=init&pwd=password
[1] The lm/lm_settings.php contains all the parameters you can change to customize the script to match your needs. When doing a manual installation it is important to open that file with a plain text editor like Notepad on Windows or TextEdit on the Macintosh.
[2] Never upload MLM to your home root folder if you have a specific folder for public html documents like ‘public’, ‘html’, ‘public_html’, ‘web’, ‘www’, ‘httpdocs’. Just open the folder or any subfolder first!
[3] If you don’t know how to CHMOD a folder with your FTP software please read your FTP software manual. It is possible your server doesn’t like you to CHMOD the ‘lm’ folder to 777 (showing an ‘Internal Server Error’ when you try to run the script with your browser) so just try 775 or 755.
The lm/html folder includes a few sample pages for subscribing customers to your lists (to a fixed single list, a single list from a selection or multiple lists at once) and a sample page for uploading lists to MLM (despite you can do that from MaxBulk Mailer as well).