How to align graphics at text edge?

How to align graphics at text edge?

[The Wizard]

All -
    Thanks to some help from Hans, I have a very clean setup which 
creates a "standard" cover for my project documents. It has a long 
colored swirl the length of the page, two logos (mine and the 
customers') and a title. The code looks like this

\startsetups[titlepage]
\setuplayout[page]
\startstandardmakeup
    \setlayer[page]
      [preset=lefttop]
      {\externalfigure[wp_cover_art_blue.pdf][height=\paperheight]}
    \setlayer[page]
      [preset=righttop,y=.01\paperheight,x=.01\paperwidth]
      {\externalfigure[customer-logo.pdf][height=.1\paperheight]}
    \setlayer[page]
      [preset=righttop,y=.08\paperheight,x=.01\paperwidth]
      {\externalfigure[my_logo_blk.pdf][height=.1\paperheight]}
    \setlayer[page][preset=middle]
      {\definedfont[SansBold at 22pt]\color[sunblue]\setupinterlinespace
       \framed[align=flushleft,frame=off]{\getvariable{document}{title}}}
    \tightlayer[page]
\stopstandardmakeup
\setuplayout
    \setuppagenumber[number=2]
    \doifmodeelse{twosided} {
        
\setuppagenumbering[conversion=romannumerals,alternative=doublesided,
             location=,state=start] } {
        
\setuppagenumbering[conversion=romannumerals,alternative=singlesided,
             location=,state=start] }
    \doifmode{twosided} {\page[yes,right]}
\stopsetups

and is invoked in the document as

\setups[titlepage]


Now, I am trying to figure out how to get the two logo graphics to align 
to the right edge of the printable page, but I can't seem to find the 
right "key" to the \externalfigure call. I have looked at the wiki, and 
through the manuals, but I don't seem to be able to find what I want. 
Any ideas?

-- 
Mark Almeida                             mark.almeida@sun.com
Solutions Architect                      (707)398-9524/x81132
Sun Client Solutions                     (707)429-0341 Home Office
                                         (707)480-5038 Cell