Serious problem with exporting website, out of memory

[MarciaB]

I've a serious problem exporting a website, that is it won't export ! It is a heavy website (the xar file is 63,4 Mb, the web file is about 200 Mb) and contains a lot of photo galleries. I saved all photos as 75% quality jpg's, optimised them, but still Xara is telling me that it's out of memory while exporting. What can I do ? How can I increase the memory in the Tune-ups tab ?