Need urgent help with this....please

I have an export dmp file which I have to import into a clean database. I have created a new d/b. How should I do it ? Do I need any special precautions, consideration or anything ?

Also. I have another dmp from a specific user. This user's default tablespace was system. This dmp file has to be imported into this new d/b with all the objects going into the new tablespace that I will create.

Can someone please help me with this....