Upgrade standalone version (1 Viewer)

[codemann]

My original plan was to turn to use my fileserver as a TV server too, so I installed the standalone version on my HTPC.
However, I came back from this decision, and I want the TV server to run on my HTPC now. I still want to be able to watch TV over my network, so I need the TV server.
Can I still install the TV server and TV client on my HTPC after my standalone installation?

TV-Server Version:
MediaPortal Version: Latest Stable (v1 RC2)
MediaPortal Skin: Monochrome
Windows Version: Windows XP SP3
CPU Type: Intel P4 2.6 (HT)
HDD: Seagate Barracude 160GB
Memory: 512MB
Motherboard: Abit IS7
Video Card: Asus V9520MAGIC (NVidia FX5200)
Video Card Driver: Asus NVidia Driver 175.19
Sound Card: AudioTrak Prodigy 192
Sound Card AC3: Coaxial Out
Sound Card Driver: 5.20
1. TV Card: Hauppauge PVR-350
1. TV Card Type: Analog
1. TV Card Driver: (not yet installed)
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider:
HTPC Case: Ahanix MCE 601
Cooling: Standard
Power Supply: Ahanix Power Supply
Remote: MCE Remote
TV: Loewe CRT Nemos
TV - HTPC Connection: VGA (Loewe VGA Module)