I'm trying to install Thunderbird on Mandrake 10.1

So far I've managed to untar the file (thunderbird1.0.tar.gz) and no go after that. Have a look at the console instructions, I can't figure out what I'm doing wrong.

[root@localhost thunderbird]# pwd
/home/bi/thunderbird
[root@localhost thunderbird]# ./configure && make
bash: ./configure: No such file or directory

or if I type it differently the result is the same:

[root@localhost thunderbird]# ./configure
bash: ./configure: No such file or directory

I'm in thunderbird directory where I untarred the file, am I not? why does it keep on telling me there's no such directory? Thanks for any constructive input.

BTW, how can I read the Readme.txt file?
[root@localhost thunderbird]# ls
chrome/ libldap50.so* libsmime3.so* mozilla-xremote-client*
components/ libmozjs.so* libsoftokn3.chk* README.txt*
components.ini* libnspr4.so* libsoftokn3.so* res/
defaults/ libnss3.so* libssl3.so* run-mozilla.sh*
extensions/ libnssckbi.so* libxpcom_compat.so* thunderbird*
greprefs/ libplc4.so* libxpcom.so* thunderbird-bin*
icons/ libplds4.so* libxpistub.so* xpicleanup*
init.d/ libprldap50.so* LICENSE.txt*
[root@localhost thunderbird]#

You don't have to configure it or make it, just run the executable file in the directory called thunderbird.

You don't need to compile it. Just run:
./thunderbird

Thank you david_ross and Optimistic for your replies. I wish I had known it was that simple, my problem is fixed.