Specify the archive destination in the init file and copy all the archive from the old database to this destination .
then as we said earlier
when you specify recover database it will apply all the archive log files
provided you are not using the controlfiles and redologs from the old backup.
To apply archivelogs its a must you have the controlfile from the olddatabase and not from the old coldbackup. Similarly if you have the redolog from the old database you can recover upto the point , but if have new redolog ifles then you can do only an incomplete recovery upto the last avaiable archivelog using cancel method