No Login Button and conflict with PC Site !!!

I install of the Mobile-Joomla.1.0-RC4 on my site in Joomla 1.5.25 without any problem.
The transformation of my site for iPhone or Smartphone work well.
The only problem is there no Login module on the Mobile version!!!!
I would like to have a Login Button to register the visitor!!!
To solve I install the mod_mj_login-0.9.10, no problem to install, but when I ability this module, I have a conflict with normal page on PC !!! The site doesn’t open!!!
What is the solution???

In what position did you publish the module? Note that the module should be used with mobile templates only.
Are there error messages in error_log file? And what is url of your site?

my url is : www.matchoncard.com.br

And in what position the module is published?

For the Module (mod_mj_login) position I wrote: iphone.matchoncard.com.br?tp=0 or iphone.matchoncard.com.br?tp=1
I also try: iphone.matchoncard.com.br?tp=mj_iphone_header
A have no more conflict with the site page on PC.
But le Loging module don’t appear in iPhone mode.
My administrator accesses is :
User name :
Password :

details sent to dryabov as a private message.