Newbie question

[Mario8k]

Hi,
i have some crucial doubts...

I have been installed olwidget as a django reusable app....

Is necesary to use with django.contrib.gis or not? Can i use django-
olwidget without have django.contrib.gis inside INSTALLED_APPS?

So.. can i use olwidget to writes WKT data back to a regular
models.Charfield() attribute?
Do you have some trivial example to show an editable map in the admin
to store a point in db?

Thanks,