Virus info

PTAGS_at_ONETEL.NET.UK
Date: 11/28/03 

Date: Thu, 27 Nov 2003 17:01:22 -0800

Can anyone advise.
I am receiving a heap of returned emails indicating that I
may have a virus.
Some emails refer to w32/gibe or w32 sven.
Are these 2 different viruses?
How do I get rid of them.
I`m a novice to this computer scene.
thanks