Help with you tube widget on safari please

Hi,

Hope this is question is in the correct place!

I've got a new issue with my website created with xara webdesigner 10. I have a news page http://www.tomburkeonline.co.uk/news.htm which has some you tube videos and vimeo videos embedded in them. Now on safari they are displaying some odd behavior. If I have more than one widget on the page they won't actually work until the bottom one has been launched. Then the rest work fine. This behaviour is happening on all my news pages. On firefox they behave normally with the caveat there is a momentary error message which then quickly vanishes and is replaced by working version. I also have a vimeo video on the third page which functions fine on firefox but shown as blank on safari on my ipad mini. How do I fix this and what is causing the error message?