This VMWare virtual images was provided by TuxDistro.
http://www.tuxdistro.com/torrents-details.php?id=346

These are the details from their web page

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Scientific Linux is a recompiled Enterprise Linux put together 
by various labs and universities around the world.

Connie Sieh has announced the release of Scientific Linux 5.0, 
a distribution rebuilt from source packages for Enterprise 
Linux 5 and enhanced with a variety of additional applications: 
"Scientific Linux 5.0 i386 is now available." Some of the extra 
applications include: "CFITSIO - a library of C and FORTRAN subroutines 
for reading and writing data files in FITS; FUSE - an implementation 
of a fully functional file system in a userspace program; 
Graphviz - graph visualization tools; IceWM - a lightweight window manager; 
Intel wireless firmware, MadWiFi and NdisWrapper; Java; MP3 support; 
OpenAFS; R - a language and environment for statistical 
computing and graphics.

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Created: Jun 20, 2007

Operating system: Scientific Linux 5.0

Applications installed:

VMware Tools installed: No

Size: 911 MB Compressed/ 3.5 GB Expanded

Primary account
Username: changeme
Password: scientific

Root Password: scientific

Screenshot 1  800x600
http://www.tuxdistro.com/sshot/sci1.gif

Screenshot 2  800x600
http://www.tuxdistro.com/sshot/sci2.gif

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Note that the original virtual machine was compresses using rar.
Since rar is not in Scientific Linux, or other popular operating systems, 
we have uncompressed it, then recompressed it in a zip format.  
It is not as small, but it is easier for people to decompress.