[Evolution] trouble installing evolution

[Paulo Filipe Canha de Andrade <paulofilipe netcabo pt>]

Hi,
I have redhat 7.0 with ximian gnome and when installing evolution, whn i did ./configure it ended in this

checking for Gnome App libraries (GAL) >= 0.2.1...found
Unknow library "gtkhtml"
Unknow library "gtkhtml"
checking for GtkHTML...configure:error:GtkHtml 0.5 or later is required to compile Evolution

but when i tried to install gtkhtml-devel it said it needed bonobo-devel, and when installing bonobo-devel it 
said it needed oaf-devel, but I have oaf-0.6.5 and there isn't any oaf-devel-0.6.5 on the internet. And I 
can't unistall oaf to a prior version because nautilus needs this version!!
Pleaassee, if anyone can help me I have been through a lot of trouble just to get here I would apreaciate 
very mauch just a little help.
Regards,
Paulo Filipe