DAY 3...I found this link
http://wiki.centos.org/HowTos/RebuildSRPM on the CentOS wiki.
Even if the software is not available in CentOS, you should always try to get or build a RPM for the software, since the advantages of using a package management system will compensate for the work you will have building the package.
I agree, so Google found me Tom van der Woerdt
http://bitcoin.stackexchange.com/questions/10467/how-do-i-go-about-installing-a-bitcoin-daemon-in-centos-linuxHe says
This is the bitcoin.spec file I use to build these packages
Name: bitcoin
Version: 0.8.1
Release: 1%{?dist}
Summary: bitcoin
License: GPL
URL: http://bitcoin.org
Source0: http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-%{version}/bitcoin-%{version}-linux.tar.gz
%description
bitcoin
%package qt
Summary: bitcoin-qt
%description qt
bitcoin-qt
%prep
%setup -q -n bitcoin-%{version}-linux
%build
%install
mkdir -p %{buildroot}%{_bindir}
%ifarch x86_64
cp -R bin/64/* %{buildroot}%{_bindir}
%endif
%ifarch i686
cp -R bin/32/* %{buildroot}%{_bindir}
%endif
%clean
rm -rf %{buildroot}
%files
%doc README COPYING
/usr/bin/bitcoind
%files qt
/usr/bin/bitcoin-qt
%changelog
I think this is the way to go, though I would really like to build a non-qt version of bitcoind.
This might be a good start and a first attempt to know more about how an rpm package works.