Coordinates of designed of supramolecules

Dear Colleagues,
 Would you please to inform free Linux/FreeBSD software for design of
 supramolecules and obtaining coordinates of entire supramolecules from separate
 sets of molecular coordinates.
 My problem is that I have obtained image (see of
 my interesting supramolecule by using Molden+Paint but having no coordinates
 of entire supramolecule.
 Thanking your in advance.
 With best regards, Arvydas Tamulis
                   Arvydas Tamulis
 Doctor of Natural Sciences, senior research fellow
 Institute of Theoretical Physics and Astronomy, Vilnius University,
 Theoretical Molecular Electronics Research Group,
 A. Gostauto 12, Vilnius 2600, Lithuania
 e-mails: TAMULIS %! at !%  or  arvydas_tamulis %! at !%
 fax: +370-5-2125361  or  +370-5-2124694
 Phone: +370-2-620861
 Home address: Didlaukio 27-40, Vilnius 2057, Lithuania
 Mobile phone: +370-6-9919397