Glogster

I have experimented with Glogster and have found it very confusing.  Despite watching the tutorials I have got very lost.  Maybe with more practise I will get better but to post my Mind map on it I took over 2 hours to read and sort through all the information.  Just finding an acceptable Nickname took well over half an hour.  If using all these tools are going to take so long is it really worth it?  My Glogster account is http://aussiecasa.edu.glogster.com/  Where I was feeling very excited learning new ideas.  This has made me want to not even use the account.  Can someone please tell me why I need to use it when I can Blog and do the same things.  I don't know whether I would set up children's accounts as this would have to be passed by the school authorities.