MFC-7420 Scanner installation problem

[yoog]

I have installed Ubuntu 11.04, 64 bit and now I am trying to install/configure MFC-7420 scanner part (printer works fine). I tried to follow the steps listed at http://ubuntuforums.org/archive/index.php/t-590793.html, but I don't have /etc/udev/rules.d/45-libsane.rules file to edit and can not continue with the remaining steps of the guide.

I also tried to follow the steps provided by the Brother Solution Center http://welcome.solutions.brother.com/bsc/public_s/id/linux/en/instruction_scn1a.html. I have downloaded brscan2 64 bit and installed without error but when I tried to install the brscan-skey-0.2.1-3.amd64.deb using >sudo dpkg -i --force-all brscan-skey-0.2.1-3.amd64.deb I get the following error:
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sudo dpkg -i --force-all brscan-skey-0.2.1-3.amd64.deb
[sudo] password for aUser:
dpkg: warning: overriding problem because --force enabled:
package architecture (amd64) does not match system (i386)
(Reading database ... 149212 files and directories currently installed.)
Preparing to replace brscan-skey:amd64 0.2.1-3 (using brscan-skey-0.2.1-3.amd64.deb) ...
Unpacking replacement brscan-skey:amd64 ...
dpkg: dependency problems prevent configuration of brscan-skey:amd64:
brscan-skey:amd64 depends on libc6 (>= 2.3.4-1).
dpkg: error processing brscan-skey:amd64 (--install):
dependency problems - leaving unconfigured
Errors were encountered while processing:
brscan-skey:amd64
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Which dependencies am I missing? or What am I doing wrong?

[yoog]

Any 1?