Thanks for that Carrie - This facility on Search results would make a big difference to my project.
Regarding product_t.tpl my only dealing with this so far is in Featured Products - I don't know what other features use this template??
I dug around in the forum after you said this, and this thread has provided the code for Manufacturer to appear in Featured Products:
http://forum.x-cart.com/viewtopic.php?t=19684
I'll take a look now and see if I can use it in Search Results
This subject seems to be turning up in lots of guises in different parts of the forum - It might be useful if someone with more knowledge than I have rounds up all of this useful information at some stage??