First, if you are using DNN 4.0.x or 3.2.x, you need to resolve a bug with localization as explained here:
http://www.dotnetnuke.com/Community/Blogs/tabid/825/EntryID/281/Default.aspx
Then
1) Install the module
2) Install the "hack". You can do that by going to the Install Helper page (Only HOST)
3) Activate the options you need from the General options page
If you are still having problems, please post your configuration here (Screen-shot)