How do I uninstall Windows 7.5 mobile application (samsung omnia w)

Hi,

I installed an application in my new windows 7.5 based mobile phone (Samsung Ominia W) however, I can't uninstall it . I can see it list of programs but there is no option to uinstall it from there , also it is not visible in market place under collection . I also can't see it in Xbox live.

From where I can uninstall it ?

I think in the list where you see it in list , just long tap it and it will show option to uninstall it.