Ehm we are running on the newest version rev32.3 ...
You can download it here: http://www.minecraftforum.net/topic/856360-1…-pipes-updated/rev34 is only for BuildCraft 3.x and has no SMP support.
Sorry mine fault i downloaded version for server 
Posts by Marcuss2
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Please can you update Additional pipes? i cant get older version
If you update then 
for you -
Please update Industrialcraft to 1.6.4 please