Couple of questions

[Tim H.]

> 1. I just upgraded my router to a netgear wireless router from a
> linksys. I am now unable to find my server on my network as well as
> unable to see it in the router.

You can try removing all of the wireless connections from your 
connection manager.  Just right click the wireless icon and go from 
there.  Basic, but it's a good first step.

> 2. I have always had a hard time linking my pc's to the ubuntu box. Is
> there something I'm missing?

Have you tried samba-server.  Google search should get you started.

> 3. Eventually I was thinking of creating a social networking site. Would
> it be wise to use the same box for the hosting and operation of the site
> as well as a back up for my home pc's??

You'd be better off with a dedicate machine for any public sites for 
security sake.  That is unless you are confident you can separate your 
everyday files from the served files.

> I have an older dell box with a new 350 g hd. with a p4 processor.
> Nada on the HD except the 10 ubuntu.
> Been working on this for a year in my spare time. Being a landscaper, I
> don't have a great deal of time now but I guess that's a good thing.
> Thanks for any help!!!
> Bob
>

With that size drive you could try hosting your site on a virtual 
private server.  Install the virt-manager.  From there you would need to 
forward web hits (port 80) to the virtual machines IP.  Essentially 
splitting your desktop machine into a pretty powerful dedicated server. 
  Just an idea.

Tim H.