As explain in the CodeFluent Entities documentation (http://www.softfluent.com/documentation/BOM_BLOB_BITS_Url.html) you have to set the bitServerUrl
attribute in the configuration file.
<configuration>
<configSections>
<section name="Sample" type="CodeFluent.Runtime.CodeFluentConfigurationSectionHandler, CodeFluent.Runtime"/>
</configSections>
<Sample connectionString="server=(local);database=Sample;Integrated Security=true"
bitsServerUrl="http://localhost:1028/Sample/" />
</configuration>