You can suggest places to buy chips. It just can't be from a place you work or get referral points from. The second parts forbids users from advertising to sell their chips or purchasing them from other members. Nobody wants to be responsible if a member screws you over, and the forum doesn't want to track or give out confidential info because you broke a rule.
I used to get my chips from mods4less.com, but they are gone (they had the cheapest prices).
You can try getting an xecuter 2.6 ce from
http://www.modchipstore.com/. They are about $30+shipping.