Not able to run cifar-10

[architkansal]

I am able to run mnist but I get error while running cifar-10 :
I get the error :
TypeError: pool_2d() got an unexpected keyword argument 'ds'
so I modified the line 288 in nn.py to
z = pool_2d(z, ws=poolsize, stride=poolstride)
and I tried running with both theano 0.8.0 / 0.8.2 and 0.9.0 but I am getting this error now:

line 283, in pool_2d
   assert cuda.dnn.dnn_available()
AttributeError: 'module' object has no attribute 'dnn'  

nvcc --version gives the following:
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2013 NVIDIA Corporation
Built on Wed_Jul_17_18:36:13_PDT_2013
Cuda compilation tools, release 5.5, V5.5.0

Any Idea how to resolve this error ?