Yes. The confusion is that there is a stand-alone version (pro) that includes a plugin for LR AND a Photoshop plugin version that allows you to tone map after combining for HDR in Photoshop. You can buy either or get both in a discounted package deal.
Also, there are plenty of discount codes for Photomatix. Go and pick one up at stuckincustoms.com to save 15%. While you are there take a look at Trey's excellent HDR tutorial on Photomatix!