trouble with beamer oxygen theme

Hi, I found strange problem using modified oxygen theme.
It is modified by my friend who uses tl on Gentoo.
I uses Miktex and when I try to compile document using this theme
I receive several errors it looks like
\definecolor command is not properly understood.

Any sugestions?

the sty file:

%Beamer template -- OSSA2008 by Mariusz Slonina
%email: mariusz.slonina@xxxxxxxxx
%last update: 24.09.2008
%originally based on Oxygen template by KDE-Team
%
%s
%
%

\usetheme{Rochester}
%comment out line below to see navigation symbols
\setbeamertemplate{navigation symbols}{}
\RequirePackage{pgf}

\pgfdeclareimage[width=1.0\paperwidth]{ossaheader}{hdsh}
\pgfdeclareimage[width=1.0\paperwidth]{ossafooter}{ftsh}
\pgfdeclareimage[width=.3\paperwidth]{titimg}{sss}
\setbeamertemplate{blocks}[rounded][shadow=true]
\setbeamercovered{transparent}

\beamer@headheight=0.13\paperwidth

\definecolor{ossaorange}{HTML}{ff6600}
\definecolor{ossagray}{HTML}{686868}
\definecolor{ossalightgray}{HTML}{eeeeee}
\definecolor{ossablue}{HTML}{236eaf}
\definecolor{ossablack}{HTML}{000000}
\definecolor{ossared}{HTML}{cc0001}
\setbeamercolor*{Title bar}{fg=white}
\setbeamercolor*{Location bar}{fg=white}
\setbeamercolor*{title page}{bg=ossaorange,fg=black}
\setbeamercolor*{frametitle}{parent=Title bar}
\setbeamercolor*{block title}{bg=ossablack,fg=white}
\setbeamercolor*{block body}{bg=ossalightgray,fg=ossagray}
\setbeamercolor*{normal text}{bg=white,fg=ossagray}
\setbeamercolor*{section in head/foot}{fg=white}
\setbeamercolor*{block body alerted}{bg=white}
\setbeamercolor*{block body example}{bg=white}
\setbeamercolor*{navigation symbols}{fg=ossaorange}

\usecolortheme[named=ossaorange]{structure}

\setbeamerfont{section in head/foot}{size=\footnotesize,series=\normalfont}
\setbeamerfont{frametitle}{size=\Large,series=\bfseries}
\setbeamerfont{title page}{size=\Large,series=\bfseries}

\setbeamertemplate{title page}
{
\vskip 1cm
\hskip 6.5cm
\pgfuseimage{titimg}
\linethickness{0pt}
\usebeamerfont{title page}%
\vskip -3cm
\hskip 0cm
\inserttitle\\
\vskip -.3cm
\color{ossaorange}{\rule{6.5cm}{3pt}}\\
\vskip .3cm
\begin{minipage}[!h]{6.5cm}
{\small\normalfont
\raggedleft\insertauthor
\vskip -.3cm
\hskip 3.98cm{\footnotesize\itshape\insertinstitute, \insertdate}
}
\end{minipage}
\vskip 1cm\par

}
\setbeamertemplate{frametitle}
{
\vskip-0.25\beamer@headheight
\vskip-0.7\baselineskip
\vskip-0.2cm
\hskip0.0cm\usebeamerfont*{frametitle}\insertframetitle
\vskip-0.10em
\hskip0.7cm\usebeamerfont*{framesubtitle}\insertframesubtitle
}

\setbeamertemplate{headline}
{
\pgfuseimage{ossaheader}
\vskip -1.95cm
\linethickness{0pt}

\framelatex{
\begin{beamercolorbox}[wd=\paperwidth,ht=0.3\beamer@headheight]{Title bar}
\usebeamerfont{section in head/foot}%
% \insertsectionnavigationhorizontal{0pt}{\hskip0.22cm}{}%
\end{beamercolorbox}}

\framelatex{
\begin{beamercolorbox}[wd=\paperwidth,ht=0.7\beamer@headheight]{Title bar}
\end{beamercolorbox}}
}

\setbeamertemplate{footline}
{
\pgfuseimage{ossafooter}
\vskip -0.5cm
\linethickness{0pt}
\framelatex{

\begin{beamercolorbox}[leftskip=.3cm,wd=\paperwidth,ht=0.3\beamer@headheight,sep=0.1cm]{Location
bar}
\usebeamerfont{section in head/foot}%
\null\hfill\insertsection\qquad
\insertframenumber/\inserttotalframenumber
\end{beamercolorbox}}
}
.