sigc++-2.0 need help NOW!

I wanted to install rtorrent, but they want me to install libtorrent-0.10.4 (libtorrent-0.10.4.tar.gz) before.. and I cant, cuz they want me to install sigc++-2.0 before.. well, I did, and now Im stuck.. This is whats come up when I tries to ./configure libtorrent

checking for sigc++-2.0... Package sigc++-2.0 was not found in the pkg-config search path. Perhaps you should add the directory containing `sigc++-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'sigc++-2.0' found
configure: error: Library requirements (sigc++-2.0) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.

My friend told me to move some files around to another dir, but he didnt know witch dir or files to move.. so, help me out here if you know.

Remove whatever sigc++ you've installed. Download THIS package, install it, run /sbin/ldconfig just in case and try to configure libtorrent afterwards.

Thanks, but.. Is that link very slow or is it my internet that blows? cuz I cant download that damn pkg :P its just not working :O

You can pick a different mirror from HERE.

Thank you very much.. almost love u =) XD

The order of installation rtorrent-0.7.1 on Slackware 10.2
In the beginning necessarily we create a link:
ln -s /usr/lib/pkgconfig /usr/local/lib/pkgconfig
We install through pkgtool packages:
curl-7.12.2-i486-1.tgz
libsigc ++-2.0.17-i486-2asz.tgz

To execute ldconfig
We swing and is installed in this order:
(What parameters for configure it is not used, simply ./configure; make && make install)
libidn-0.6.5.tar.gz
After assembly libidn-0.6.5 we create a link:
ln -s /usr/local/lib/libidn.la /usr/lib/libidn.la
Also we carry out ldconfig

Then we collect
libtorrent-0.11.1.tar.gz
rtorrent-0.7.1.tar.gz

This all