How do you change an .esm to an .esp in the G.E.C.K., i know some one did write somewhere that it was possible...but how?
I can't see any option to do so there, some help would be appreciated.

Also how do i remove independence to an .esm from an .esp in the G.E.C.K.?

GECK can't esp'ify. Use FNVEdit, select file header in left panel, mouse over "ESM" to the right of "Record Flags", hit F2, untick "ESM", close, save, change file extension to esp. Any plugins with that ESM need to also be opened during the session and simply change the '.ESM' to '.esp' in the masterlist(s). Reloading all should then work out with the former ESM master as an esp.

Thanks

No problem ESM'ifying works similarly, which you'll need to do before editing any of this plugin's dependent .esp's with the GECK as it will otherwise strip the esp out of the masterlist(s).

OK.

But i was moving over stuff from and .esp that was dependent on an .esm, so now i only need the .esm that i have made to an .esp with the added stuff from the other .esp.

Hope you get what i meaning