My Excessive Server Load

[:Judge:]

I wake up this morning to find my site was removed due to Excessive Server Loads.

My account has been re-opened so that I can make adjustments to correct this, however, I need some mighty guru know how to get me through this. This is all the info I have recieved:
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planetquintessa.com 4.13 0.45 0.0

Top Process
%CPU 0.2
httpd [cecilcountyx.planetquintessa.com] [/forums/cron.php?&rand498971]

Top Process
%CPU 0.1
httpd [cecilcountyx.planetquintessa.com] [/forums/cpstyles/vBulletin_3_Default/cp_help.gif]
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I have not ever had this problem before so I have no idea what to do. I do not have a huge site but has undergone several upgrades and such.

The site is shared on a server with another site that has been closed (should I remove that databse if not being used?)

My server is Flux Services.