Sorry, you're right. It's a little long time ago, since I installed conky-manager. I think, you should install both. conky + conky-manager. You can config the conkys without the manager, but if you are new on linux, it's much easier with the conky-manager. 
An other solution is to search and find conkys on deviantart.com, gotham is here:
To find the .conky file, you go to your .home folder and press Ctrl + H to make visible your hidden files. There you should find your .conky folder with the files. Further, if you would install other conkys, you have to extract the zip files into your .conky folder.