Sony ericsson SDK installer

Hi,
I am trying to install the SDK for UIQ from that web page.
http://developer.sonyericsson.com/site/global/docstools 
/symbian/p_symbian.jsp

I am trying to install two SDK's on the same computer following the 
instructions on ...
http://www.newlc.com/article.php3?id_article=578

Before I discovered that tutorial I was getting the following errors ...

"com.symbian.install.cw.runtime cannot be installed since one or more of
its 
dependencies is missing"
"The problem dependency is com.symbian.bin.jphone-shape"
I had checked it out and that dependency have already existed.

After the tutorial I get a little bit more through. Now I am getting two new 
errors ...
"The engine failed to initialize, aborting program"
"Document root element is missing"

any idea?

best wishes,

Marti