cache group is missing while creating new mobile project,,,

Hi..

i am having trial version of SUP 2.0.

when i creating a new mobile project of some name....there is no CACHE group for it. it must show under project.

moreover, there is one way to create cache group is.. file>new>cache group....

if i giving some name for cache group it is not coming under Workspace Navigator.

Does this cache group really matter? if yes, what can be done in this case...

Regards.

Jitendra Kansal