How to set up dynamic payment for regularly increasing pricing structure?

[Renate]

To those Warriors who have experience in using the Instant Membership Script from Simon Hodgkinson, which is offered in D4M.
Dear Warriors, I urgently need your help.

I am preparing a membershipsite with Instant Membership Script from Simon Hodgkinson. During prelaunch I want to offer slots for early birds.
So I set up the increasing pricing structure on Membershiplevels menu, means after selling a certain amount of memberships, prices will increase til they reach the normal endprice.

Since I understood that with this software I cannot run a dynamic script,
I set up other pricing levels, using the normal price, but also set up the respective coupons to reach the same prices as in the membershiplevels before.

But now I do not know, how this can work in practis. How should my promotors know how many slots are sold and when they should offer the next coupon, because the one before has sold out.

Or if I use the different pricelevels, how does the system know, when the next level has to be shown to the subscriber, because the slots of the level before have sold out.
There will only be ONE Membershiplevel, but many different pricing levels.

I urgently need help from an experienced marketer, who can tell me how to do the change from one level to the next in pricing.

Or do I have to do that all manually? If using the coupon method, sending the next coupon to be given to prospects to all JV's as soon as I see in the statistics, that the already used coupon ran out?

Please Skype me and let's talk about it.

Please help. This will be my very first prelaunch and launch.

Kind regards
Renate