Editing entries, blanks in file names, saving item

First, let me say this module is an absolute delight. I didn't "find" it until part way through an update of http://vekon.com and the I still have to complete about half the bibliography (:Documents") and merge information from "Publications".

One issue is editing individual entries. I rely on the "biblio" page as menu and index and to get to the entry I go through Administer Content. It would be somewhat more convenient, though at some aesthetic cost, to use an "Edit" link along side the entries.

I started attaching documents but found "URL" to be more intuitive for readers. It was easy to upload all the documents to "files/documents" and point at them. I used relative urls which is an unfortunate choice for exporting the citations. All the documents came from a Windows machine and had blanks in the file names. Those were improperly encoded replacing blanks by "+". It was easier to rename the files with a script to replace " " with "_". Proper encoding of URLS would be a good thing.

Clicking "Tagged" on an Ubuntu/Firefox desktop displays "Saving Item" but I have no idea where.

"DOI" sounds neat, how much of a pain is it to get it going?

I am receiving enthusiastic responses and am recruiting some local help with data entry.

Thanks