alex carbonero has written a tangent shader plugin for maya4/5/6, he has info on it over at spiraloid:
http://cube.phlatt.net/forums/spiraloid/viewtopic.php?TopicID=9&page=4 (towards the bottom of the page)
Hey I was going to post here but someone beat me to it 
Anyways yeah, I got tired of dealing with the same issue, so I wrote a shader for Maya render, you can get it on my site
www.alexcarbonero.com just go to my Mel and Mll section and download my menu.
here is some conversation that have been going on @ cgtalk
http://www.cgtalk.com/showthread.php?p=1793178#post1793178
hope it helps it’s really easy to use and I made it specifically for noraml maps exported from zbrush using the flip vertical option.
Has anyone got both normal map and displacement silouete map to work in maya 6.5 Im refering to the killero scene at headus. I can render the normal only in metalray but not the old displacement and normal that was made for 5.0
Alejandro, Where is your shader? It is not on your site anymore?
Also, you spell knowledge wrong on your resume.
Ironically on purpose? Hope so.
Hello can someone tell me how can i generate a displasement . normal or a bump map for Max or Maya from this model
Attachments
i read ur thread and that encouraged me to ask u a ques. i am new to z brush i heard about normal maps a lot, but i didn’t know how to use them in maya so could u give me detailed description about that plz ?
This is how I learned, well worth the $8:
http://gnomonology.com/group/14
There’s also one on displacement maps which I would suggest picking up.
I hope that helps!!