Moisture in taillights - confused about the fix

[wdb]

I have moisture in my right rear taillight. I also had moisture in the headlights, and I used silicone sealant to cure that - it worked wonderfully. I took the taillights off, expecting to do the same thing, but I found some interesting stuff.

1. The taillight assembly does not appear to be 'sealed' as well as the headlight assembly
2. Somebody drilled little holes in the taillight lenses

So I did my usual thing and searched the forum. I found two threads of substance:

http://www.subaru-svx.net/forum/show...light+moisture

http://www.subaru-svx.net/forum/show...light+moisture

I see where the hole-drilling fix is mentioned, and one of the former owners was a member here, so that mystery is solved. But I have holes and I still have moisture, so I'm still looking for a better fix. And the threads above have me a bit confused.

Are folks taking the taillights off, then sealing the taillight-assembly-to-body area using various means? Or are they taking the taillights off, then taking them apart, and sealing the taillight assembly itself using various means? Or both?

Thanks in advance for your help. The taillights are my last step prior to putting the SVX back on the road for the first time in over a year, so I'm pretty pumped.