The system can be a first-come-first served thing, where a person puts how many points he wishes to buy/sell and then is entered in a list. Let's say nobody at one given time wants to buy points, but there are many people trying to sell points at that same time. And then, somebody tries to buy some points - the person who tried to sell their points will get their credits when their points have been sold, and if their points are unsold then they can withdraw their points from the stack.

That is, there would be a "waiting list", where whoever has had their points in the list for the longest, or at the bottom of the stack if you'd rather put it that way, will get their points sold immediately next, and if you are the last person who submitted points for trade yours will start at the end of the line. 

As for exchange rates there can be one locked trade currency, such as it will always be 3 points for 1 credit. Alternatively, the value of points vs credits can fluctuate based on the market, like supply and demand - if there are billions of credits stored up in the waiting list and nobody submits points to sell, then the value of points will increase, and you will get less points for your money. This will make players need to be more vigilant of the market, and it would bring negatives as well as positives compared to a locked exhange rate. To soften up a fluctuating value, players can alter their offers without having their places in the line reset.

The activities of buyinging points have been increased also the price (from 3p for 1c to 1p for 1c), I think this would definitly help players to transfer what they have to what they need.

Beside the method suggested by MechPilot524, my suggestion is make it like selling sailors. Replace the interface with 5 columes, the amount of points are being sold, the credit the seller wants, the excahnge rate, the seller and a exchange botton.

The good thing is the exchange rate is controlled by the market, if they are too cheap/expensive, they will be bought immediately/no one even buys, then the sellers would adjust the exchange rate accordingly.

To avoid sellers make pages of deals, we can limit the max number of deals they can offer at the same time, lets say 3 or 5.

what we have developed is inverse inflation due to a MASSIVE influx of RAPIDLY developed BB6s.

it has ALWAYS been 3 points for ONE credit, then World at WAR was introduced....suddenly it went to 1 point=1 credit.......THEN they allowed the 'good ole boys'  to do NO TORP rooms...

(i should remind you at this point that the 'good ole boys' despise the 'instant BB6 boys')

so now after a coupla events...VERY GOOD EVENTS that NO ONE should complain about...we suddenly have a MULTITUDE of BB6s and EVENT SHIPS that help develop BB6s, and all of the sudden??????   

POOF!!!!!   POINT SCALPERS wanting 3 creds per point.....if i want a 5 mil point cushion, i have to pay 15 mil creds, which i do not have to spare because i have developed a lot of elite tier 4 crews by SPENDING creds....

i will live and play without that 5 mil extra points, and enjoy myself, but i must ask why are most of the POINT SCALPERS people we have never heard of or seen and where did they come from? and why are people having to HIDE BEHIND SECOND ACCOUNTS to SCALP POINTS....yes, they should be ASHAMED.