CentOS and libcurl

[JimDunn]

Hi, I need to install "the latest version" of libcurl for one of my clients... but when I try this:

# yum install libcurl

it says there's no libcurl to be found...

Can anyone help?
Is there a yum.repo entry that might help?
Will I create a problem trying to install the libcurl4 when Plesk needs libcurl3?

(oh my)

Thx! : )
Jim