^^ Whoa man! That is some complex guide I have ever seen to do a simple thing such as partition you card!!!
Manually partitioning is luring, but is not recommended because of obvious risks.
Anyway... here's the easy way:
1. Install a good recovery like AmonRa.
2. Reboot to recovery
3. You will get an option, "Partition SD Card" for ext2.
4. Select appropriate size for the ext2 partition. If you have 16 GB card, you can select 1GB.
5. You can select 0 MB as swap size. (Works for me).
Your card will now be formatted (wiped out) and there will be a 1 GB ext2 partition.
7. Now select the option to convert this ext2 partition to ext3 format.
8. Now just reboot, and start Link2SD app.
9. Select "ext3" as partition format. And reboot again.
10. Now, you can setup the Link2SD card to let it link all the apps you install automatically.
(or you can manually link the apps to card's partition after you install any app).
PS: It's easy then what it seems.