Sitemap Generator 1.7 - Archive URL #s coming up low

Greetings,
I recently upgraded to 1.7 generator so I could see the SE Bots Activity Log... While I have generate maps for archive set to yes, I'm getting low numbers when the script runs.

Before

Total URLs 174,300 (+199)
Forumdisplay URLs 371 (-)
Showthread URLs 21,201 (+21)
ShowPost URLs 134,515 (+160)
Archive URLs 18,212 (-)

After
Total URLs 174,929 (+561)
Forumdisplay URLs 373 (+2)
Showthread URLs 39,463 (+18,258)
ShowPost URLs 134,660 (+84)
Archive URLs85 (+1)

Is 1.7 putting the archive URLs into "showthreads"? The difference seems to be there, around 18k.. Thanks!

-t

There is a known error in the totals shown, though the sitemap files themselves are actually correct.

Ok so the archive is properly being reported to google, but just not displayed correctly?