Sending category trackback

I would like to send a trackback automatically each time I publish a post to a specific category.
To explain: suppose I have a category named “Me and WordPress” and I wanna ping TopicExchange every time I post to that category.
Now I can use the Kitten’s TrackBack Plugin to “save” the trackback url I need then select it.
But if we could assing one or more trackback url to each category the whole process should be automatic.
My previous blog was an MT and it provide this features, do we’ll let our beloved WP without? 😉
Do you know of any plugin that can do that?
many thanks
Stefano ‘garubi’
http://digitaldivide.garuti.it/