Great Plains Annual Enhancement Program & Annual Mainenance Program Queries

My company currently is using MS Dynamics GP V8 for their accounting software. Currently, we had plans to upgrade on recommendations from the GP vendors for additional security features for SOX compliance.

We have been paying AEP & AMP yearly as I read from the web, my company should entitle for free version upgrade. However, can the vendor charge us for the following scope of work.

a)      Test Upgrade Existing MBS  From GP 8 to GP 8 service packs 5 To Version 10.0 (For one company, Trio Tech, only)
b)      Actual Upgrade Existing MBS  From GP 8 to GP 8 service packs 5 To Version 10.0 (For four (6) companies, Trio Tech Singapore, Malaysia, Thailand, China, SHI International and PT SHI International only)
c)      In-House testing on SQL 2005 upgrade for databases
d)      Install SQL Server 2005
e)      Configure SQL Server 2005 to meet Dynamics GP Requirements
f)      Install/Configure Dynamics GP 10 on SQL Server 2005
g)      Install Software Version 10.0 On All Workstations (9 workstations)
h)      Test Upgrade for Reports/ Documents
i)      Actual Upgrade for Reports/ Documents
j)      Modify and Touch Up 18 Reports
k)      Install Reports/ Documents
l)      Test Printing Of Reports/ Documentsw
m)      Acceptance Test
n)      Users Training on new version 10 features

I hope someone can enlighten me on GP licensing scheme as it is confusing as compared to other MS Software License