Drupal 7.x

Hey there everyone, so I was hoping I might be able to get a little help with what I assume is probably a very simple error (hopefully!).

I recently got a job with a company that is hosting their website through Drupal, specifically, Drupal 7, and I've found myself in charge of making edits and keeping up with said website. Full disclosure, I am not a coder. I know a little bit to make changes here and there, but this is essentially completely foreign to me (coding and Drupal as a whole).

I have a problem in using the Galerie module and want to show it by mean of screenshots.

But I see I cannot attach files to a message in this forum.

Is there a way to insert them elsewhere?

I'm experiencing this issue for the first time when I update values in css responsive.
I'm using the Corolla theme, sub-theme Adaptive Theme.
Once changed some css values and compressed CSS files it seems to work fine, but if after deactivating 'Aggregate and compress CSS files' I change some values again, after reactivating compression the compressed css files still has the old values.

Needless to say, I have cleaned the caches over and over again.

I can't get out of it, could someone help me?
Thanks to all  

I can't seem to find any solution to this anywhere- but what would be the best way to change the color of a username on a site based on their current user group? (For example: all users in the "administrator" role would have their usernames appear in red across the site, all users in the "developer" role would have their name appear in blue across the site)

I am logged in and able to work as admin but I can't login from other devices.

My web host has restored an earlier backup and gets the same problem. Is there any way to recover from this?

I'm pretty sure there is no way to do this through the Drupal interface upon log in, but I thought i'd ask.

My goal is to make a prototype test site for my multi-site that will serve as a "ready to go" version for new sites.

I am very close to getting it wired through linux MySQL command lines (dump commands etc.) so thats good.

Is there ANY way to do this through the Drupal interface instead of logging into MySQL and exporting the prototype info into the new sites brand new database. 

or is that just the way Drupal is?