When I Change the template to Ja_purity works great, but in the Shopper Frenzy template dont work, you know something to do?

I reinstall all the site and the joomsef show me the same error, please help me

I Update virtuemart to 1.1.4 and nothing change.

well the /inicio is working but the step 2 in checkout shopping cart not.

sorry is /inicio, I set to "No - disable base href generation" but not works.

I enabled full error reporting, but still not show anything in step 2 of the shopping cart. I made the change in .htaccess and still does not show anything. I have not updated Virtuemart to 1.1.4 because realize some changes and I do not remember very well: D and they do not want to lose. When I a set to No in Fix index.php in JoomSEF this error fix it, but /home don't works.

Sorry, how can i do that?, and have the same problem when call to Home

I have:
Version de PHP: 5.2.9
Version de Joomla!: Joomla! 1.5.18 Stable
Web server: Apache/2.2.11
Virtuemart: 1.1.3
JoomSEF: 3.6.5
JoomSEF Ext: 2.0.26

In the step 2 in checkout show me black page. Help me please.