Is it in any of the following ranges?
[code:1]10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255[/code:1]
If it is you can forget about hosting anything. In addition, even if it is a public IP, the firewalling policies of your ISP may still restrict you.
If you want to have remote access to your PC you may have to use something like LogMeIn
I wouldn't recommend posting your IP publicly. Edit your post to remove it.
Anyway, it's a public IP. So the only things preventing anyone accessing your PC remotely would be 1) Your ISP's firewall 2) Your own firewall.
Doing a traceroute to your IP stops at an address which I presume belongs to your ISP (MantraOnline). You will need to get in touch with them to find out about their firewalling policies.
P.S. I note in your original post that you mentioned using Network Neighbourhood to transfer files. I would not expose Microsoft LAN protocols to the internet without encapsulating them in a VPN of some sort.