Instalation failure due to "incompatible with version 7.x-1.0"

Hi to all,

First of all, excuse my poor English.

I am testing Drupal on a Virtual box VM with Debian and for some days I am trying to setup amazons3 but i am keep getting the same warning about awssdk module: "incompatible with version 7.x-1.0"

I got the new awssdk 1.5.6.1 from aws.amazon.com which solves the version problem with the 1.5.6 ( http://drupal.org/node/1588180 ) but I am still having the same issue. May be I am doing something wrong or I am missing something.

Any way sdk_compatibility_test points that everything is normal:

Minimum Requirements
Test 	Should Be 	What You Have
PHP 	5.2 or newer 	5.3.3-7+squeeze8
cURL 	7.15.0 or newer, with SSL 	7.21.0 (OpenSSL/0.9.8o)
SimpleXML 	Enabled 	Enabled
DOM 	Enabled 	Enabled
SPL 	Enabled 	Enabled
JSON 	Enabled 	Enabled
PCRE 	Enabled 	Enabled
File System Read/Write 	Enabled 	Enabled
Optional Extensions
Test 	Would Like To Be 	What You Have
OpenSSL 	Enabled 	Enabled
Zlib 	Enabled 	Enabled
APC 	Enabled 	Enabled
XCache 	Enabled 	Disabled
Memcache 	Enabled 	Enabled
Memcached 	Enabled 	Enabled
PDO 	Enabled 	Enabled
PDO-SQLite 	Enabled 	Disabled
SQLite 2 	Enabled 	Disabled
SQLite 3 	Enabled 	Disabled
Settings for php.ini
Test 	Would Like To Be 	What You Have
open_basedir 	off 	off
safe_mode 	off 	off
zend.enable_gc 	on 	on
Other
Test 	Would Like To Be 	What You Have
Architecture 	64-bit 	64-bit

Bottom Line: Yes, you can!

Your PHP environment is ready to go, and can take advantage of all possible features!

PS:
I have try to clear cache more than once without success on the awssdk module

Thanks for your time
Spyros