I found these very useful instructions posted on the net that showed me how to access my myspace in school. I hope they help!
1. Download the fire fox browser. You cannot install the browser directly. You have to copy the unpackaged files, which is basically copying the Mozilla Firefox folder. This includes all of the commands to runs the program.
Note
The easiest way to get firefox on your account at school is by first downloading it on to your computer at home, copying the Firefox folder located in your programs folder, and then burning it to a disk. (Floppies won’t work)*
You can do this by clicking start, my computer, local C drive, Program Files folder, and then click and select Mozilla Firefox folder. If you have windows XP hold down Ctrl & C. Open the blank cd folder located in the My Computer Folder. Paste the browser folder inside the window. Remember there are other ways to burn files to cd. Once you have gotten the files burned just copy and paste the files from the cd to your student account.
2. Open the firefox folder located the firefox icon. Click once to highlight and select the icon. This will open the icon title for editing. Change the title to winword.
*note - do not remove the icon from the folder*
3. Double click on the icon to open the firefox browser.
4. Once the browser is opened locate and click the Tools option on the task bar at the top of the browser window.
5. In the tools menu located and click the Options option. A window should open containing five options. General, Privacy, Web Features, Downloads, and Advanced.
6. Click on the General option.
Click here to see example.
7. Locate and click on the Connection Settings option. A window should open.
8. There should be four radio buttons options. The window title should say "Configure Proxies to Access the Internet." Click on the Manual Proxy Configuration option. The listed boxes should open up for edition.
9. Select the Use the Same Proxy to Access the Internet option. Only one box should remain open, "Http Proxy:".
10. Type kp1.no-ip.org in the first box.
Click here to see example.
11. In the second box titled Port type the number 80.
12. Once you have done this click the ok options until you return to the main Options window.
13. At the main Options window locate and click the General option (you should already have this window up).
14. Locate the home page setting at the top of the window. In the box type in pagewash.com. ( see note)
*note - This sets pagewash.com as the home page. If pagewash.com doesn't generate the k-proxy web site try using another site such as aol.com, google.com, or yahoo.com by typeing the url in the address bar. Google works fine at the moment*
15. Click ok until you return to the main browser window.
16. Click the house on the taskbar at the top. A webpage should appear titled K-Proxy.
Click here to see example.
17. In the box next to the Surf option type in your desired website destination (myspace.com).
18. Click the surf option. The page should load myspace.com. From here you will be able to login and use all of the Myspace.com functions. You can also check email else where on the net.
Note
If you have followed the steps you should now be able to visit Myspace.com. If an message appears that says "This document contains no data" ignore that. It will appear several times. Just continue to click okay. It is just a proxy error that I am working to fix. Some sites that you visit through k-proxy may show up with coding, for example myspace.com. This does not mean that you can’t use the website. Please ignore this occurrence. Also because of the current settings you will not be able to use firefox for regular site visitation through the browser unless you go to the connections settings option and change it to automatic.
I heard in a forum that there will be duplicate sites like this just in case schools block those sites too. Good luck!