The reason you are experiencing trouble running that piece of software in
your virtual server account is due to the lack of memory available.  There
is nothing wrong with the installation of your VPS accoutn, or the operating
system - the issue is confirmed to be a memory overage (out of memory) based
on the billing package you selected.

You can try disabling all other software (default software is enabled on
each new VPS such as the web, xinetd, sendmail, and cron daemon) which you
can turn off with the following commands

service httpd stop
service sendmail stop
service crond stop
service xinetd stop
chkconfig httpd off
chkconfig sendmail off
chkconfig crond off
chkconfig xinetd off

Once you turn off all un-needed software, you can try running the particular
application you wish to run and should find it has more memory to function.

You will also be able to monitor memory usage using the following commands
(while logged in as 'root' via the ssh shell service)

ps auxwww
free

You should also monitor the "memory limit" closely with the following
comamnd:

cat /proc/user_beancounters

The limit will look something like this:

uid resource       held     maxheld  barrier   limit     failcnt
14xxx:  kmemsize   2516641  3646769  52428800  52428800  0
lockedpages        0        0        32        32        0
privvmpages        6523     34370    32000     32000     30
shmpages           45       1053     8192      8192      0
dummy              0        0        0         0         0
numproc            22       35       500       500       0

The 'failcnt' column for privmpages will show your memory utilization has been exceeded 30 times, which prevents that application from using any more ram.