M.A. Garrett, Joint Institute for VLBI in Europe (JIVE), Postbus 2, 7990~AA, Dwingeloo, The Netherlands. garrett@jive.nl, Tel: +31 (0)521 596511 T.W.B. Muxlow, MERLIN/VLBI National Facility, University of Manchester, Jodrell Bank Observatory, Lower Withington, Macclesfield, Cheshire SK11 9DL, UK. twbm@jb.man.ac.uk, Tel: +44 (0) 477 571321 S. Garrington, MERLIN/VLBI National Facility, University of Manchester, Jodrell Bank Observatory, Lower Withington, Macclesfield, Cheshire SK11 9DL, UK. stg@jb.man.ac.uk, Tel: +44 (0) 477 571321 W. Alef, Max-Planck-Institut fur Radioastronomie Auf dem Hugel 69, D-53121 Bonn, Germany. walef@mpifr-bonn.mpg.de, Tel: +49 (0) 228 525289 A. Alberdi, Instituto de Astrofisica de Andalucia, CSIC, Apdo. 3004, 18080 Granada, Spain. antxon@iaa.es, Tel: +34 958 121311 H.J. van Langevelde, Joint Institute for VLBI in Europe (JIVE), Postbus 2, 7990~AA, Dwingeloo, The Netherlands. langevelde@jive.nl, Tel: +31 (0)521 596511 T. Venturi, Instituto di Radioastronomia, CNR, Via P. Gobetti, 101, 40129 - Bologna, Italy. tventuri@astbo1.bo.cnr.it, Tel: +39 (0)51 639 9370 A.G. Polatidis, Onsala Space Observatory, S-43992 Onsala, Sweden. apolatid@oso.chalmers.se, Tel: K.I. Kellermann, National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903, USA. kkellerm@nrao.edu, Tel: +1 (0)804-296-0240 W. Baan\inst{8}, Netherlands Foundation for Research in Astronomy (ASTRON), Postbus 2, 7990 AA Dwingeloo, The Netherlands. baan@astron.nl, Tel: +31 (0)521 595128 A. Kus\inst{9}, Torun Centre for Astronomy, Nicolas Copernicus University ul. Gagarina 11, 87-100 Torun, Poland. ajk@astro.uni.torun.pl, Tel: +48 (0)56 611 3004 P.N. Wilkinson, University of Manchester, Jodrell Bank Observatory, Lower Withington, Macclesfield, Cheshire SK11 9DL, UK. pnw@jb.man.ac.uk, Tel: +44 (0) 477 571321 A.M.S Richards MERLIN/VLBI National Facility, University of Manchester, Jodrell Bank Observatory, Lower Withington, Macclesfield, Cheshire SK119DL, UK. amsr@jb.man.ac.uk, Tel: +44 (0) 477 571321