I'm afraid we have not received any other support requests from you than this one. All requests submitted via our official support e-mail or web site are processed within 48 hours. Posts in this forum are usually answered within 2 - 6 days.
In the future please use
http://www.blumentals.net/support/support.php
Sorry for any inconveniences.
In your case the original animated image was optimized by some other GIF animation tool, due to this optimization it is not possible to alter the original animation.