I don't think it's your computer Redz. It appears that your nameservers have changed and no one has updated them at your registrar, Network Solutions or that an attempt to update them was either incomplete or otherwise unsuccessful. It looks like you need to get in touch with one John Barker - john.barker@vteg.com - whomever he is - and tell him to get over there, get to the bottom of things and make sure your domain name is pointing toward the right nameservers. You may already know this fellow, but here' more info on him...
John Barker
220 Fire Road 3
Lancaster, MA 01523 US
Phone: 978-840-1727
He's listed as both Administrative and Technical contact for your domain. I assume the Billing and Registrant contact would be you. At least it should be as well as the Admin contact. I didn't see you listed anywhere on the domain record though, so while you are getting the nameservers corrected, you might get yourself added to all three of those contact entries in the domain record. If you want to keep John Barker as your technical contact you can do so. If not, you can add me. Let me know I'll provide you with the info you need.
Domain Name: CAPEDCOD.COM
Current Registrar: NETWORK SOLUTIONS, LLC.
Name Server (primary): NS51.WORLDNIC.COM - 205.178.190.26
Name Server (secondary): NS52.WORLDNIC.COM - 205.178.144.26
IP Location: US(UNITED STATES)-TEXAS-DALLAS
Record Type: Domain Name
Server Type: Apache 2
Here's where the problem may be...
IP Address: 209.62.20.212 (ARIN & RIPE IP search)
That is the IP address for capedcod.com. This is where that IP addy resolves...
OrgName: ThePlanet.com Internet Services Inc.
OrgID: TPCM
Address: 315 Capitol
Address: Suite 205
City: Houston
StateProv: TX
PostalCode: 77002
Country: US
ReferralServer: rwhois: //rwhois.theplanet.com: 4321
NetRange: 209.62.0.0 - 209.62.127.255
CIDR: 209.62.0.0/17
OriginAS: AS13749 AS13884 AS21844 AS30315
OriginAS: AS36420
NetName: NETBLK-THEPLANET-BLK-EV1-16
NetHandle: NET-209-62-0-0-1
Parent: NET-209-0-0-0-0
NetType: Direct Allocation
NameServer: NS1.EV1SERVERS.NET - 207.218.247.135
NameServer: NS2.EV1SERVERS.NET - 207.218.223.162
Comment:
RegDate: 2007-03-19
Updated: 2008-02-28
OrgAbuseHandle: ABUSE271-ARIN
OrgAbuseName: The Planet Abuse
OrgAbusePhone: +1-281-714-3560
OrgAbuseEmail: abuse@theplanet.com
OrgNOCHandle: THEPL-ARIN
OrgNOCName: The Planet NOC
OrgNOCPhone: +1-281-714-3555
OrgNOCEmail: noc@theplanet.com
OrgTechHandle: TECHN33-ARIN
OrgTechName: Technical Support
OrgTechPhone: +1-214-782-7800
OrgTechEmail: admins@theplanet.com
So your registrar has capedcod.com on one set of nameservers, but the site itself is on another set (with different IP addresses). This would probably explain why your email is no longer working and why you can't access your cPanel/management page. Unless your email service/accounts were transferred, they would need to be set back up from scratch. Same for the management page. As for the site itself, that may be a cache/cookies thing on your end or it may be a network issue since the domain record doesn't seem to match the facts.
Let me know if I can help.