I suggest you read some introduconary notes on linux
a good start is www.tldp.org/guides.html
then you'll know that there is no way to see linux partitions from xp
there is enogh documentation on how to set up mount ponts and mount drives
recently there are pretty good tools for partitioning like parted
I use the fdisk as I am used to it.
read the documentation over the linux system and the man pages of the programs that you are going to use
this is the best way to know your new os