DT you can delete yourself just search then edit and disable
Although you can delete a few images from your portfolio, DT has very strict limitations regarding this.
DT requires your images to be online at least 6 months. You are only allowed to delete 30% of your portfolio before the 6 months is up.
Here is the exact text (from
http://www.dreamstime.com/terms):
"Commencing April 10, 2006, all Contributors are required to keep at least seventy (70%) percent of their portfolio online with Dreamstime.com for a period of at least six (6) months. You may disable all files older than six months from the date of review at any time. You will be allowed to disable a total of thirty (30%) percent of your total images submitted within the past six (6) months. Images submitted prior to April 10, 2006 may be disabled at any time."