Features to import content types Features seem to be the right way to import custom centent type in a fresh D7 install from a D6.
But when I create my feature on the D6 one, it added dependencies like modules,and once I import the module on D7, these aren't satisfied because D7 module version doesn't yet exist or it's not recognized..

How can I figure out this ? it's about CCK submodules (filefield,imagefield..)

thanks
These modules are now in core in D7.

EDIT:

I think I now understand what you are trying to do, and it is going to be a little more difficult than simply upgrading your site to D7. If I understand correctly, you are taking a D6 module generated by Features, and trying to plug it into a D7 site. Before you can do that you MUST first upgrade the D6 module to a D7 module. You will find more information here. The Drupal API has changed for D7.

If this is only a small site, do a clean install in D7, create your content types manually, and use cut and paste to migrate your content. For larger sites, create a complete working copy on a test bed and do a site upgrade following the instructions found here. 

I have done several d6 -> d7 upgrades, and it usually takes two or three tries to get it right. If you do multiple backups during the process, you can restore to a working stage and continue without having to start from scratch if the upgrade fails for whatever reason.

Good luck.