Using images preview of PS1.4 to PS1.2

[alexcat]

Hello, i am still using PS 1.2.5, and at the moment i don't update to PS 1.4 because i can't be risk to get any error, because i have more than 50.000 registere customers, and my actual shop works fine, but I would like to put the ajax code of preview images of PS 1.4 to my PS 1.2.5, because the images preview of PS 1.2.5 has left a little antiquated... could be possible to replace the code of the preview pictures of products of the PS 1.4 to be used in PS 1.2.5? Which files are?

 

Thanks in advance