Graphics, Figures & Tables ⇒ IEEEtran and centering threeparttable

[aros]

Hi,

I am writing a paper/article for a conference using IEEEtran. In this document I have a threeparttable that goes over both of the columns. However I dont manage to center it.
Here is the table:

\begin{center}
\begin{threeparttable}
\caption{....}
\label{....}
\centering
\scriptsize
\begin{tabular}{ | l | c | c | c | c | c | c |} \hline
... my table...
\end{tabular}
\begin{tablenotes}
\scriptsize
\begin{tabular} {p{4cm} p{10cm}}
....my tablenotes...
\end{tabular}
\end{tablenotes}
\end{threeparttable}
\end{center}

\begin{center} and \centering do not work as it just centers the table in the first column but no centered in the page.

can someone help me?

Ana