You should be able to copy files using either method - copy/paste or Open/Save As should work. Do you get any errors when you try to do that?
If you register for a 7 day trial you hould have all the options as in full version. The demo will have save limitation.
The small attachments (under 64K) are purshed to the Local/mailattachments, larger ones stay in Network/mailattachments.
If you have problems - drop a note to
or call our 24x7 support hotline at 212-400-7602.