Edit SVG Animation

I have an SVG animation of a teal-colored heart beating. The "beating" animation scales the heart icon from the center. I need to replace the image of the heart with another simple icon (which is a purple heart and house shape combined) while preserving the "beating" animation. I am able to replace the icon by editing the code in the SVG file, however, the "beating" animation no longer animates from the center, but instead animates from the top left of the new icon and pushes the icon down and to the right (also making the icon smaller on the 64x64 pixel stage). I believe there is a way to do this using an equation that compensates for the shift in position, but math is not my strength. :-) I found the following two articles that may offer insight into how to accomplish my request, however I am not sure if they apply. [login to view URL] [login to view URL] Anyway, in essence, I just need the beating heart as seen in the file "[login to view URL]" to be replaced with the new icon seen in the file "[login to view URL]". I have also supplied the new icon as an eps file, in case you want the original vector file. I am also including my attempt at replacing the icon so you can see how far along I got. :-) Files included: 1. [login to view URL] - Original animated "beating" heart 2. [login to view URL] - A static SVG version of the purple heart/house icon that needs to replace the teal heart 3. [login to view URL] - The purple heart/house icon in its original vector form (just in case it is needed) 4. [login to view URL] - This is my attempt at replacing the heart with the new icon. It retains the animation, but the anchor point is at the top left instead of the desired center. (The icon is also too small, as it should be about the same size as the original animated heart in "[login to view URL]" The desired output file would be a new "[login to view URL]" file with the purple house/heart icon animated identically to the original teal heart from the original SVG. For someone who knows how to accomplish this, it will likely take longer to read my description than to make the requested change. :-)