I got past the error messages thanks to suggestion from vaughan (download file from poem) combined with Dirk's app_info.xml (edited filename to match the downloaded file). Now just waiting to see if the project will send some tasks. This is the app_info.xml currently running...

Code:
<app_info>

   <app>

      <name>poemcl</name>

      <user_friendly_name>POEM++ OpenCL</user_friendly_name>

   </app>



   <file_info>

      <name>poemcl_0.2_x86_64-pc-linux-gnu__opencl_ati_100</name>

      <executable/>

   </file_info>

 

   <app_version>

      <app_name>poemcl</app_name>

      <version_num>1</version_num>

      <plan_class>opencl_ati_100</plan_class>

      <avg_ncpus>0.5</avg_ncpus>

      <max_ncpus>1.0</max_ncpus>

      <flops>2.1e10</flops>

      <coproc>

         <type>ATI</type>

         <count>0.5</count>

      </coproc>

      <cmdline></cmdline>

      <file_ref>

         <file_name>poemcl_0.2_x86_64-pc-linux-gnu__opencl_ati_100</file_name>

         <main_program/>

      </file_ref>

   </app_version>



</app_info>