CRM4.0 Installer Confusing

Hi Team,

        I have new install CRM4.0 on Windows 2008 R2 64bit Server. I found CRM Rollup is4.0.7333.2155 already applied in my new CRM. I haven't apply any hotfix. Why rollup is already applied between7 and 8. I got installer from this link Microsoft Dynamics CRM 4.0 (DynamicsCRMServer_1033_amd64.exe). What wrong with my installer? I need CRM installer without any hotfix. Please share the link.

Build Version
RTM: 4.0.7333.3 (English)

Rollup 1   - 4.0.7333.1113
Rollup 2   - 4.0.7333.1316
Rollup 3   - 4.0.7333.1408
Rollup 4   - 4.0.7333.1551
Rollup 5   - 4.0.7333.1644
Rollup 6   - 4.0.7333.1750
Rollup 7   - 4.0.7333.2138
Rollup 8   - 4.0.7333.2542
Rollup 9   - 4.0.7333.2644
Rollup 10 - 4.0.7333.2741
Rollup 11 - 4.0.7333.2861 -> Download package - 4.0.7333.2862
Rollup 12 - 4.0.7333.2935   
Rollup 13 - 4.0.7333.3018 -> Router re-release    - 4.0.7333.3026
Rollup 14 - 4.0.7333.3135
Rollup 15 - 4.0.7333.3231
Rollup 16 - 4.0.7333.3335
Rollup 17 - 4.0.7333.3414
Rollup 18 - 4.0.7333.3531
Rollup 19 - 4.0.7333.3628
Rollup 20 - 4.0.7333.3732
Rollup 21 - 4.0.7333.3822

Best Regards,

Yukon

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