I've chained 2 proxies in the following manner
in LAN settings:
In the Address Box I've put in a proxy ip:80
then space then another proxy ip 'n port no.
80 in the port box.

I've got a couple of questions on that:

1)Is the above method of chaining proxies correct?
If not wats the correct way?Also I prefer to stay away
from third party applications so if possible plz
suggest a manual way of chaining proxies.

2)When I visit any IP detecting site it shows only one
proxy IP instead of 2.Then how can I come to know that
Im behind 2 proxies??

Eagerly awaiting for ur replies,

Khotwadi.