DrupalChat and IE 7

DrupalChat works well with firefox, chrome and IE 8 but the chatlist did not load in IE 7.

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; AskTbORJ/5.15.2.23037; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Timestamp: Wed, 26 Sep 2012 11:28:27 UTC

Message: jQuery, MooTools or Prototype needs to be loaded before jStorage!
Line: 72
Char: 9
Code: 0
URI: http://localhost/testproject/sites/all/modules/drupalchat/js/drupalchat-...

Message: '$.drupalchatjStorage' is null or not an object
Line: 179
Char: 4
Code: 0
URI: http://localhost/testproject/sites/all/modules/drupalchat/js/drupalchat....