Help! Copying folders between users on same Mac

Hi All,

Looking to move/copy folders from one user to another on same computer. Really in a tough spot and I'm hoping you can help me... probably real simple, just don't have the expertise.

Long story short:

- Very old MBP (2006) running Mountain Lion has corrupt hard drive. It's done for. Have Time Machine backup.
- New rMBP (late 2013) running Mavericks.
- Set up a new (read: clean) account when I got the new rMBP.
- Imported the old account (2006) to the new rMBP via Time Machine backup.
- Need to transfer all files (documents, desktop files, etc.)

I am getting an error right that says I, as the administrator, do not have permission to access the files. I have tried:
1) Accessing the files from the primary/new account via the Finder and exploring the users/library folders.
2) Changing permissions on all files/folders in the old account.
3) Changing administrator on each account.
4) Putting folders into the "shared" folder, then logging into new account and copying over (same permission errors... and not on all files.)

When I look at folders, they have a small red circle with white dash in it - access not allowed. I can enter a password and see the files, but when I copy, not all files are copied (e.g., 6 gigs out of 16 gigs for one folder.)

I'm not sure what else to try and I'm pulling out my hair. Thanks for any suggestions.

Cheers,
PW