Hi
This is the sort of information you will find on a marriage in England between 1754 and 1st July 1837
Basically you will get their names and status (bachelor/widow/widower). Their residence for the three weeks prior to the marriage - that might only be 'of this parish'. Whether the marriage was by banns or licence. Their signatures if they could sign and the signatures of two witnesses who may or may not be related.
St Anne's Soho is a Wesminster church. The records for Westminster Churches are held at Westminster Archives - nothing online.
It might be worth reading Dawn's excellent guide on the London and Middlesex Rootschat board
REQUESTS FOR PARISH REGISTER LOOK-UPS - IMPORTANT INFORMATION « 1 2 »
http://www.rootschat.com/forum/index.php/topic,404050.0.htmlwhich will help you order the marriage on microfilm and view it if you are not able to visit Westminster Archives and nobody volunteers to do a lookup for you. Unfortunately there are many requests on the London and Middlesex board for lookups but few volunteering to do lookups if any at present.
Regards
Valda