[Zope] File info from external ftp

Hi, In our Zope based Website we use an external (non-zope) ftp-server where users can download program updates, manuals etc. We do this because we have a much better / cheaper bandwidth on the external server.

From within zope I have a sort of 'link object' that points to these files, so that users don't notice the difference. When I list these objects in a directory (via dtml-in) I would also like to show automatically the date and the size of the external file. Does anybody know how this can be accomplished easily from within zope ?

Thanks Hans