http://www.aayisrecipes.com/2009/03/14/lime-pickle/

This looks really good! I saved it on Delicious for when the citrus supply and the zeitgeist coincide.

HOMEMADE LIME PICKLE
http://www.flickr.com/photos/keralacookery/4355347698/

HOME MADE GINGER LIME JUICE

http://picasaweb.google.com/paulvj0/GingerLime#5548684572269733538

Not sure if one of these are what you are looking for?
http://www.vegetarian-cooking-recipes-tips.com/lime-pickle.html
http://www.capetrib.com.au/recipelimepickle.htm

Sounds interesting!