Apt/sources.list changes.

[Katipo <katipo@weavers-web.org>]

Hello,

Have just changed entries in a sources list from testing to unstable.
During updating, error messages occur on the 'security', 'contrib.,' and 
'non-free', entries, the rest updating satisfactorily.
I'm assuming that these list entries are not applicable to a sid 
classification.
Would that assumption be correct?
And, if so, if I reverted only those entries to a 'testing' config, 
would this create a distribution mismatch?
Thanks for any advice.
Regards,

David.