<p>Borders taken from <a href="//commons.wikimedia.org/wiki/File:2005UKElectionMap.svg" title="File:2005UKElectionMap.svg">Image:2005UKElectionMap.svg</a><br>
Colours are the same as used in that file, plus dark purple for UKUP.<br>
See <a href="//commons.wikimedia.org/wiki/File:Northern_Ireland_election_seats_1997-2005.svg" title="File:Northern Ireland election seats 1997-2005.svg">Image:Northern Ireland election seats 1997-2005.svg</a> for corrisponding image without by-election.
I had to upload it a load of times because Wikipedia's SVG to PNG converter is really buggy, especially with font sizes.<br>
Whilst it looked good locally, only after uploading would I find it was being mis-rendered :-(<br>
Additionally, the strokes around the legend boxes aren't being drawn.
</p>
PNG version can be found at <a href="//commons.wikimedia.org/wiki/File:Northern_Ireland_election_seats_1997-2005-by.png" title="File:Northern Ireland election seats 1997-2005-by.png">File:Northern Ireland election seats 1997-2005-by.png</a>
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Nickshanks" title="User:Nickshanks">Nickshanks</a> assumed (based on copyright claims).
CC BY 2.5
No machine-readable source provided. Own work assumed (based on copyright claims).