Changing secure subdomain

[DrByte]

I've tried redirecting my subdomain to /webshop but I get a login loop on the admin screen. Is this just a problem with the configure.php files?

No, that's because the session cookie domain doesn't match the domain that you're visiting from. Thus it can't connect the dots to validate you.

For your admin, you could maybe just move your entire admin folder under the /secure/ folder, since you never need to access it unsecure.

For your storefront, you've got a complicated problem there, which would be best solved by deleting the /secure/ folder and creating a symlink in its place to point to your /webshop/ folder ... so that any requests for the /secure/ folder actually redirect to /webshop/ directly (in the server's own internal filesystem, not with apache redirects which cause security problems).