cannot open/read a partition

["b.alya@bluewin.ch" <b.alya@bluewin.ch>]

Hi all

I have little experience with kubuntu

I have a machine with 82 gb

the partitioning is a follows

1t 
Partition, 10 gb w2k fat 32
2nd partition 2 gb swap
3rd partition kubuntu (9.04) 20 gb   ext3
4th  partition data 49 
gb  fat32

yesterday 

I installed kubuntu 9.04 on 3rd partition 
mounted the w2k partition as windwos/c
mounted 3rd  
partition as /
tried to mount the 4 partition as /media/data 

but no succes

as I started kubuntu I could not access 
both the w2k and the data partitions
as I started w2k I could not read the data

I says the partition is not 
formated....

any help

tks

Ben