install problems

[James Lawrence]

hi all,
tryingto install  xvidcap  slowly solving dependancy problems.   when i 
try to install ffmpeg  with this.... "rpm -ivh 
ffmpeg-0.4.8-3.1.fc2.fr.i386.rpm"   i get this...
[jim at My_World livecapture]$ rpm -ivh ffmpeg-0.4.8-3.1.fc2.fr.i386.rpm
warning: ffmpeg-0.4.8-3.1.fc2.fr.i386.rpm: V3 DSA signature: NOKEY, key 
ID e42d547b
error: Failed dependencies:
        lame is needed by ffmpeg-0.4.8-3.1.fc2.fr

so, i did this....rpm -qa | sort -o ~/rpmlist7.txt   to see what rpms 
were installed snip of rpmlist
lame-libs-3.95.1-1
less-382-3
lesstif-0.93.36-5.2
lesstif-devel-0.93.36-5.2
lftp-2.6.12-1
lha-1.14i-14
libacl-2.2.7-5
libacl-devel-2.2.7-5
libao-0.8.4-2.1
libart_lgpl-2.3.16-2.1
libart_lgpl-devel-2.3.16-2.1
libattr-2.4.1-4
libattr-devel-2.4.1-4
libbonobo-2.6.0-2
libbonobo-devel-2.6.0-2
libbonoboui-2.6.0-1
libbonoboui-devel-2.6.0-1

it shows that lame is installed so i tried to update it no can do.     i 
downloaded lame (plain lame)
and tried to install and this is what i get.....
[root at My_World livecapture]# rpm -ivh lame-3.96-1.1.fc2.dag.i386.rpm
warning: lame-3.96-1.1.fc2.dag.i386.rpm: V3 DSA signature: NOKEY, key ID 
6b8d79e6
Preparing...                ########################################### 
[100%]
        file /usr/lib/libmp3lame.so.0.0.0 from install of 
lame-3.96-1.1.fc2.dag conflicts with file from package lame-libs-3.95.1-1
[root at My_World livecapture]#

what do I do from here ?   here is a list of all packages i got to try 
to install  xvidcap....
*faac-1.24-1.1.fc2.dag.i386.rpm    gvidcap-1.1.3-fdr.i386.rpm
*faad2-2.0-1.1.fc2.fr.i386.rpm     lame-3.96-1.1.fc2.dag.i386.rpm
ffmpeg-0.4.8-3.1.fc2.fr.i386.rpm
* installed
please help