In case you used it before:
on EnsMart (the EnsEMBL BioMart) quite a bit of the Compara query interface was removed.
But to query for different orthology_types you can use in the Attributes->Homology the orthology_type selector at the end of the page.
That will make it add the type to the output. If you want a subset (one to one orthologs) you need to postprocess it (as example grep for a specific type).
M