Preload images and x.js compatibility

[Artech8]

Thanks to Mike and Paul for their help last week getting equal columns for my site. Now I'm having one slight issue. I cannot use MM_preloadImages in conjunction with the column heights. I'm presuming it is because the adjust layout uses window.onload and the preload goes into the body tag as onLoad.
Without the preloadImages the column heights work fine.

I've posted a copy of one page that cannot work with the columns here: http://artechllc.com/aboutUs.html

Any suggestions?

All help appreciated.