Under RH 7.3,
Files > 2GB are still shown as 0 B-Files.
this should fix it:
perl -e '@s=`stat /path/to/large/file`; $s =~m/.*Size:
"size = $1\n"'
Logged In: YES
A very similar fix will be in the 1.0 release of Webmin ..
You can try out the 0.996 development release from
http://www.webmin.com/devel/ that already includes it.