>> [ebuild  N    ] sys-libs/e2fsprogs-libs-1.41.2
>> [blocks B     ] sys-libs/ss (is blocking
sys-libs/e2fsprogs-libs-1.41.2)
>> [blocks B     ] <sys-fs/e2fsprogs-1.41 (is blocking
>> sys-libs/e2fsprogs-libs-1.41
>> .2)
>> [blocks B     ] sys-libs/com_err (is blocking
>> sys-libs/e2fsprogs-libs-1.41.2)
>>  * Error: The above package list contains packages which cannot be
>>  * installed at the same time on the same system..
>
>If you're encountering blockers, then you did not build your seed
stage2 (or 
>stage1) correctly. The initial stage1 you built should have already had

>e2fsprogs-libs and the new e2fsprogs from the start. The fact that
you're 
>hitting the blocker tells me that your stage 1 or 2 was still using the
2008.0 
>snapshot instead of the one you're trying to build the stage3 with.
>
>You need to make sure you build *everything* with the same snapshot to
prevent 
>issues like this.

Thank you for your response, in an effort to make sure that everything
is using the same snapshot, I have done everything over again and have
the same issue, and included the spec files I used. 

I had wanted to purge everything catalyst has produced so far, however
when  I ran catalyst --purge, I get the following error:
!!! catalyst: please specify one of either -f or -C
When I specify both --purge and -f (some spec file) it attempts to build
the stage instead of purge. Should I open a bug for this?

Here's what I did:
emerge --sync
catalyst -s rwmc.001
catalyst -f rwmc-stage1.spec
catalyst -f rwmc-stage2.spec
catalyst -f rwmc-stage3.spec

rwmc-stage1.spec contains:
subarch: x86
target: stage1
version_stamp: rwmc.001
rel_type: default
profile: default/linux/x86/2008.0
snapshot: rwmc.001
source_subpath: default/stage3-i686-2008.0
chost: i686-pc-linux-gnu

rwmc-stage2.spec contains:
subarch: i686
target: stage2
version_stamp: rwmc.001
rel_type: default
profile: default/linux/x86/2008.0
snapshot: rwmc.001
source_subpath: default/stage1-x86-rwmc.001
chost: i686-pc-linux-gnu

rwmc-stage3.spec contains:
subarch: i686
target: stage3
version_stamp: rwmc.001
rel_type: default
profile: default/linux/x86/2008.0
snapshot: rwmc.001
source_subpath: default/stage2-i686-rwmc.001