Just access CB component from backend, it's safe.
In all backend tasks there is a test if step 2 has been completed or not.
- If you don't see any warnings at top of screen then installation completed successfully.
- if you see a warning like:
Warning: file 'components/com_comprofiler/pluginsfiles.tgz' still exists. This is probably due to the fact that first installation step did not complete, or second installation step did not take place. If you are sure that first step has been performed, you need to execute second installation step before using CB. You can do this now by clicking here: (link: please click here to continue next and last installation step).
then you can just click on the link to complete the second step. This step simply uncompresses that 'pluginsfiles.tgz' file into the same place and then deletes the file.
Probably there has been some timeout on your sever, as the second step can take anywhere from 2 seconds on fast servers up to 60 seconds on slow overloaded servers. The second step can be safely redone.
In case it still doesn't work, it's probably a permissions problem either on the folder 'components/com_comprofiler', not allowing the webserver to write into (or in case of joomla 1.5 ftp installer active, the credentials not being correct).
You can fix that by fixing the permissions of that folder, and retry step 2 link.
At last resort you can uncompress that file, and put the resulting directory 'plugin' at that place. You need to make sure that the plugin and all directories inside plugin (user, templates, language) are also writable, otherwise you won't be able to install CB plugins at a later stage.
Hope this helps. Let me know if the explanation above was clear, so we can improve our README file, and know what the problem was.