Hi Justin
I'm hopeful Rod Ward or Lilybiri will pop in to offer more. But it's my understanding that you really don't "link" to anything from the LMS. The LMS is like a big database. You upload your Captivate content into the LMS. The end user logs into the LMS and the LMS then presents the Captivate you uploaded to it.
Generally speaking, if you had no LMS and were uploading Captivate content to the web, you would want to upload all the output files (.HTM, .JS and .SWF) then provide a link to the HTM file. The HTM file has sizing instructions that present the SWF at the proper size. In a LMS situation the HTM and JS files have additional code that allows the Captivate to feed the results back to the LMS by establishing a conversation.
Cheers... Rick 