i wrote you but can not recieve answer for my latest emails , i will post here too
this is hostgator technical support reply after i said what you tell me by email ;
Thank you for taking the time to contact us. There is nothing wrong with your hosting, if you try loading a much smaller XML feed you should have no issues at all. My fellow Admin is correct, 19MBs of text is a lot of data and would make perfect sense that your script is timing out during the middle of parsing such a huge file. If there script weren't timing out there's no telling how much memory PHP would use to represent a 19MB XML structure in object-oriented linked lists.
i hope we can solve this problem , because there is so many user use hostgator shared accounts .
i bought commercial version but can not understand if feed-monster for commercial usage or free .