[Typo3] changing tt_news template

[Michael Baker]

Is there any way using typo3 that I can change the tt_news template 
located at /typo3_src-3.6.2/typo3/ext/tt_news/pi/news_template.tmpl?

I've tried to ftp a new version but I don't have write permission.

Michael.

PS some background I'm creating a website for disabled users.  It is 
important that it be standards compliant.  I need to replace 
news_template.tmpl with an xhtml transitional compliant file.  I've made 
a copy of news_template.tmpl that is compliant but now need to upload it.