I've played this game through like 5 times on each difficulty on the xbox360 and there is no real way you can without mods.
If you play along the storyline eventually they pop up and there are 16 gates total. One closed they cant be repopened so make sure you search everywhere in that oblivion portal before you close it.
there are 100 gates in the game, 16 are part of the main quest
the rest open at random when you get near them
folow the main quests and eventually shut down the main portal to oblivion. Not to mention defeating Mehrunes Dagon.
There is no real way to write on parchment without a mod. You can get mods (if you have oblivion pc) from: The Elder Scrolls Source - The largest mod collection for Oblivion (and Morrowind). Planet Elder Scrolls - One of the largest mod databases by Gamespy. Oblivion Source - Good modification database from Oblvion Source. The Elder Scrolls Files - Another large mod database by Filefront. Oblivion Portal - Collection of mods by Oblivion Portal. Chorrol.com - Modding section of Chorrol.com. search those in google and there you go.
Let the rest of her words and actions be buried in eternal oblivion.
Make a 5x4 Portal going upwards of obsidian.
bethesda is already making the seqeul to oblivion skyim
I'm afraid you can only make water portals with the Aether mod. To make an Aether portal with the mod, you make the same structure as a Nether portal, but out of glowstone, and empty a bucket of water into on of the bottom spaces in the portal frame.
search Portal gun DIY indymogul on you tube for instructions on how to MAKE your own portal gun
to make a portal to heaven you need glowstone and put the water in it
Well, unfortunately it is impossible to make a portal gun without the mod. Sorry.
It is fairly easy to mod oblivion for the PC. You can't get a pistole in oblivion for the 360 or ps3 but some one could make a new weapon type and design a pistole or for that matter anything. Oblivion is a canvase to what ever you want in a game
Get 12 obsidian and make a rectangle out if it and make sure you have flint & steel and get your flint & steel and tap your flint & steel on the portal.
Make a nether portal.