But the book itself revealed the author to be Jim Mortimer, although the American edition, published by Tor did indeed appear under the name Andrew Dymond.
Jim Mortimer is, in fact, Jim Mortimore, better known for his Doctor Who novels but also author of a number of other tie-in titles, including a Babylon 5 tie-in for Boxtree.
Farscape: Dark Side of the Sun by Jim Mortimer. Boxtree 075227234-9, Nov 2000.
Farscape: Dark Side of the Sun by Andrew Dymond. Tor 076534001-1, Sep 2001.
The other books in the series are rather less mysterious. Both Keith R. A. DeCandido and David Bischoff have SF novel pedigrees, although I have to admit I've not read their contributions to the Farscape series.
Farscape: House of Cards by Keith DeCandido. Boxtree 075221917-0, Mar 2001.
Farscape: House of Cards by Keith DeCandido.Tor 081256162-7, May 2001.
Farscape: Ship of Ghosts by David Bischoff. Boxtree 075227233-0, Sep 2001.
Farscape: Ship of Ghosts by David Bischoff. Tor 076534002-X, Jan 2002.