Updating Image Atlas

Hi,

I've come into a problem with a set of banner adverts that I created with animate - I created several sizes and then duplicated them all and coded them with click-tags for many different websites. It's just come to light that the size of the images folder for each advert brings the initial upload over the 150kb limit.

I've gone back and duplicated the original artwork to reduce the size of an image which I think is the culprit and republished it as a test, and it's brought it all under the limit, I tried to replace the "image atlas" in one of the original images folders with the new one created in the test in the hope that I can simply replace this one file for each size instead of having to go back and republish and recode every size for every site. Naturally, it didn't work - but when I copied over the Javascript and HTML from the test into an old version alongside it, it worked! So I'm thinking in addition to replacing the image atlas, is there potentially just a bit of code in either or the Javascript and/or HTML file to join it all up.

Hope that all makes sense, I've got a somewhat tenuous grasp on this myself

Thanks,

Sarita