One bug and two fixes

Hello! I'm using Workspace 1.13, on MacOS X, with MySQL 4.0.15. I encountered some problems.

1) Whenever I try to sort attached files by size, I get this error:

user error: Unknown column 'size' in 'order clause'
query: SELECT n.nid, f.filemime, f.filename, f.filesize FROM files f, node n WHERE n.uid = 1 AND n.nid = f.nid ORDER BY  size ASC LIMIT 0, 50 in /Library/WebServer/Documents/drupal/includes/database.mysql.inc on line 66.

I'm not really MySQL-wise, so I have no idea why it does that, or how to fix it.

2) The pager that shows at the bottom of the files isn't the pager of the files, but the previous pager, the one attached to the nodes.

I managed to fix this by replacing the current line 268:
$pager = theme('pager', NULL, $maxfilenames, 0, tablesort_pager());
with this line:
$pager = theme('pager', NULL, $maxfilenames, 1, tablesort_pager());

What this does is keeping id '0' for the first pager (the node one), but giving id '1' to the second pager(the files one), so that they can both show up correctly, being recognized by Drupal as different.

3) The node pager doesn't stretch properly till the end of the table, but gets cropped at column 5. Since there are currently 8 columns in the workspace node table, I fixed this by replacing the current line 244:
$rows[] = array(array('data' => $pager, 'colspan' => 5));
with:
$rows[] = array(array('data' => $pager, 'colspan' => 8));

The fixes are in the attached patch.