I have installed the module but the control panel looks like it has lost some styling  

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0% Preparing to send newsletter but it just stays there??     I have renamed my admin folder could that have anything to do with it  

Hello Gilly,

The renaming of your admin folder might be the issue for that. However, in order to investigate the issue further and fix it, can you please open up a support ticket and provide us with your admin credentials and FTP access details there?

Thank you in advance!