There is no way to automatically set permissions from your user account nor can it normally be done from an ASP script. Any filesystem permission changes on your site have to be done from the console by one of our administrators.
If you have a writable folder (eg: /data or /upload) you should be able to create, update and delete folders and files within your writable folder with ASP scripts and they should inherit their parent folder permissions. Any folders you create with FTP or FrontPage that are outside of these writable folders will be READ-ONLY from your ASP scripts.
If you accidentally delete the /data or /upload (or other folder with special permissions), or need a new writable folder created, please contact the Technical Support Department by Submitting a Ticket in the Alentus Support Center.