Replication

[Granville A. Gayle Jnr.]

I have just started to use MySQL and like the ease in which it does it's one way 
replication. However I have a situation that has multi-sites that would need to do 
local entry to a database and then update the centreal database which could then 
update those databases that don't have the changed/additional info.

i.e. locations HEAD,A,B &C. Entry done in A,B & C. HEAD needs to be updated after 
entry in A,B & C. Likewise A & B needs data from C, B & C needs data from A, C & A 
needs data from B.

Is there any known way to accomplish this with MySQL??

Thanks (even though it may sound confusing)