Restore database

Hi,

I have done homogenous system copy and target system is up now and it is working now.

I have done the source export four days back and now the source and target systems are in two different levels. The database structure are also different in both systems , the no of data files are different. I have got offline archive logs upto the current level in my source system and how to bring to current level in the target database. Pls give your valid support to sort the issue.

Regards

SK