idn language plugins video wordpress problems

Hi there!

Over the weekend i installed two lots of idn wordpress site,

http://www.xn--888-x68dy61b.com/

http://www.xn--zcka2h0f.jp/

I cannot add widgets or add categories ?? and this is only for the two idns i have attempted …… why is this ??

I recently purchased a plugin called phpmyvideoblog.com

it has worked fine in the ‘english’ speaking sites and there have been no issues … all is good

Now i did come across this handy piece of information and was able to implement the small code change, which worked on some headings but not the auto posts, and now out of nowhere the headings have now reverted back to ‘gobbly goop’ and are basically unreadable

http://hansengel.wordpress.com/2007/10/09/wordpress-unicode-and-s/

So i need to get the site to work (adding extra categories and widgets)

i need the language to be either japanese or chinese , the language of the site

I need the videos posts to display the language instead of gobbly goop

Any and all suggestions and comments would be much appreciated, i am sure there people out doing wordpress in other languages and not having these problems

Why can’t i add categories and all the other features that i normally can ??

Why are both examples of idns not working like normal ??

Many thanks in advance