Well, Ill tell you what I do PC. Doesnt work the best but its faster than clicking back one by one.
Look at your browser address for this page:
[A href="vny!://discoverseattle.net/forums/index.php?action=post;topic=21.5880;num_replies=5889"]vny!://discoverseattle.net/forums/index.php?action=post;topic=21.5880;num_replies=5889[/A]
Where it says: topic=21.5880
Thats topic 21, and 5880 replies at the start of the page that is showing.
I change the browser to something like: 2880, so it looks like this:
[A href="vny!://discoverseattle.net/forums/index.php?action=post;topic=21.2880;num_replies=5889"]vny!://discoverseattle.net/forums/index.php?action=post;[FONT color=#000000]topic=21.2880[/FONT];num_replies=5889[/A]
At the end: num_replies=5889
Is the post number of the last post to the thread.
Still trial and error to find the page but a good guestimate will get you pretty close.
Alot of the other websites I frequent you can type the page number in and it will go to it.
EDIT: heres page 200 [A href="vny!://discoverseattle.net/forums/index.php/topic,21.2985.html"]vny!://discoverseattle.net/forums/index.php/topic,21.2985.html[/A]