منتدى استراحات زايد - Vbulletin5 Discounts and Advance purchase issue

Hello My VB license is 4.1.7
I have 2 questions

1. Can i purchase/upgrade Vbulletin5 before September 30 or else anytime later and still use current VB 4.1.7 for few months until VB5 becomes stable with some new future upgrades of VB5. like VB 5.0.1

I mean i want to avail discount by purchasing before sept 30,2012 but i want to download and install this upgrade later after couple of months or more. can i do like this..purchasing VB5 but use it later( install later from VB4.1.7)

2. Next is on discounts. I may be eligible for first two options
FIRST- ALL Purchases made by 9/30/12 (either new and upgrade) - $25 discount (use coupon code CONNECT during checkout)

SECOND-Upgrades from vBulletin 3.x or 4.x - $40 discount

I know these are additive discounts. Now am i eligible for 209-(25+40)= 144 OR 249 - (25+40)=184

I think you have included 40$ discount in that 249$ so if i purchase even after Sept 30,2012 then also i get 40$ due to upgrade but may not get 25$ due to sept 30,2012 cutoff date.

Hopefully you allow if i purchase before September 30,2012 to get 25+40=65$ discount. I want to purchase upgrade license VB5 but dont want to use it now but want to make use of it in coming months. I think it is acceptable