Option to deploy Linux Agent Remotely Not Available

Dear Acronis Support ,,,

Greetings, in our environment we have multiple environments and we were looking for a proper software that can manage them all regardless of the operating system edition. I've downloaded the trial version of the software with the following licenses:
- Acronis Backup & Recovery 11.5 Advanced Server for Windows
- Acronis Backup & Recovery 11.5 Advanced Server for Linux
- Acronis Backup & Recovery 11.5 Virtual Edition for VMware vSphere
- Acronis Backup & Recovery 11.5 Virtual Edition for Redhat Enterprise Virtualization Manager 3.0
- Acronis Backup & Recovery 11.5 Virtual Edition for Microsoft Hyper-V
- Acronis Backup & Recovery 11.5 Virtual Edition for Citrix XenServer
- Acronis Backup & Recovery 11.5 Virtual Edition for Parallels Server Bare Metal
- Acronis Backup & Recovery 11.5 for Microsoft Exchange Server
- Acronis Backup & Recovery 11.5 Advanced Workstation
I've completed the installation of Acronis Backup & Recovery 11.5 Server successfully and I deployed the agent for Windows and for Hyper-V successfully. But when I tried to remotely deploy the agent for one of the Linux Servers (RedHat 4.5) the option is not available for deployment (it's not listed). What should I do in order to complete this deployment. I'll extremely appreciate your quick response as the trial version will expire on the 18 of December.

Very Truly Yours ,,,
Qutaybah,