Currently 6.x-1.x and 6.x-2.x work with Drupal 6. 7.x-2.x is available but in its infancy.
This module also has baked in support for the Ubercart Recurring Payments module, using Stripe's built-in Subscription capabilities.
The 6.x-2.x and 7.x-2.x versions uses stripe.js to prevent card details from ever hitting the Drupal server, aiming and PCI-DSS compliance. (They do *not* use Stripe's subscription capabilities but instead uses uc_recurring.)
Please leave issues in the issue queue if you uncover anything that needs fixing!
For further instructions, see the README.txt included with the module.