Word 2007 has bad (read non-existing) support for footnote styles.
A possible workaround I came up with is by abusing the suppress options:
http://bibword.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=20331 You could work from that one and just create multiple strings (full, short, ibid).
Alternatively, you can just use the suppress field in general and only create one string. When you look in the code for citations, you will notice 3 lines for the different suppress flags:
These 3 lines say which variables not to use when one or more of the three suppress flags are used. So in your case, you could change the
notitle field to include city and publisher.
Then for your second and following citation, you can just indicate to suppress the title and neither city nor publisher will be shown.