All of the issues that you are having are related to your cron jobs not working properly. This is by far the most common problem users have and the main cause of things not functioning properly.
Using cron/gen_blogs_full.php will make the blogs show up, and also if you go into the Etano Admin and select "Skin Settings" from the menu and "regenerate" your skin, it will update the user profiles and your search results should then appear. However this is just a temporary solution and the problem will continue to exist until you get your cron jobs working properly.
Cron jobs auto regenerates and updates user info and blogs about every 10 minutes. Either your crons are setup incorrectly or your host doesn't allow crons to be run that frequently (every 10 minutes).
First make sure that your cron jobs are set at
*/5 * * * * and not
5 * * * * This short hand
*/5 * * * *Stands for: “Every Five Minutes” “Every Hour” “Every Day” “Every Month” “Every Week Day”
I can't offer much help with trying to run cron jobs from a third party service such as setcronjob.com but one thing is you will need is a premium account with them since their free service only allows crons to be run every hour which won't work for Etano.
If you can't get a third party cron service to work, your best bet is to get your site hosted on a server that allows you to run cron jobs that will work with Etano. You can try hostforweb.com or try contacting "HyerGrnd" in the forums who provides hosting for Etano and will assist with the crons if need be.
The cron jobs do various things at different time intervals, which can be anything from clean up jobs to updating info, cron tasks run anywhere from 5 minutes to monthly. The main purpose of cron jobs is to distribute the load for various tasks and keep the site running efficiently. Things such as blog and profile updates run every 10 minutes, which means the info could be updated anywhere from 1-10 minutes depending when the info is submitted and when the scheduled cron job is ready to run again.
You can try reading this thread and see if any of the info is helpful ...
http://forum.datemill.com/general/strange-result-cron-job-2884.0.html