1. download filezilla server from this
2. install filezilla server
3. interface will automatically open shortly after you click "close" on the installer window
4. login to your server (login info are already provided click Connect)
5. click on this
icon. a form will open
6. on the right you have Users group. Click on Add type in your Username and press OK
7. in the middle you have the Account Settings check the Password checkbox and type in your password in the textbox next to it
8. Connections Per IP. limit it to 5~10 (preferably your server's IP Limit)
9. on the left select "Shared Folders". click on "Add" and choose your Guild Emblems Folder
10. Next to the Shared Folders list there are 2 groups Files and Directories
in Files check
Read, Write in Directories check
List uncheck +subdirs (checked by default)
11. Click on Speed Limits (Left Side). in Download Speed Limit
check
Constant Speed Limit Of specify the maximum download speed in my case 50~100k is enough
12. Upload Speed Limit. check
Constant Speed Limit Of and do the same thing we did with the download speed limit (50~100k is more than enough for uploading a 1~40kb file)
13. Click the "OK" button. and click on Edit->Settings server options window will popup
14. select Autoban. Check Enable Automatic Bans checkbox. edit the amount of maximum failed attempts (5~10)
this should do the job however, filezilla doesn't have any "uploaded file size limit" feature yet.