Embedded hashtag stream repeating tweets


We have embedded a twitter stream on www.abicon14.com to feed the #abicon14 hashtag. When a tweet with that hashtag is retweeted it appears as though the retweet was coming from the original poster, not the person retweeting so it is appearing as though one person is tweeting the same thing over and over again when in-fact it’s being retweeted by others.
Any help would be appreciated!