[R] Rattle for R-3.0.0?

[Казахстанский филиал МГУ им.Ломоносова]

To Whom It May Concern,

When trying to install Rattle for R-3.0.0 we get a message
"package ‘rattle’ is not available (for R version 2.14.1)"

The same message we get when we try to install Rattle for earlier versions of R.

Would you be so kind to let us know how to overcome the problem?

Many thanks in advance,
Vladimir