If you have any questions about iSpirit, please read the iSpirit FAQ's documents first. You can also get help by visiting our Community Forum.

1. The easiest way to install theme on iPhone is by using iSpirit. Learn more about it.

2. If you have wifi, you could install the winterboard theme via cydia directly.

3. Manually Install
   (1). Connect to your iPhone (with iSpirit or other way)
   (2). Drag & drop the theme folder to "/Library/Themes" – alternatively, you can copy the theme to "/private/var/stash/Themes…" or "/var/stash/Themes…"
   (3). Launch Winterboard and apply the new theme as usual. done!

Please follow our WinterBoard use guide here.

It cite some of the most compelling reasons to jailbreak your iPhone here.

Please follow our guides: jailbreak iOS 4.3.1 untethered with Redsnow 0.9.6.

Ever since the winterboard update someone had trouble in applying a new winterboard theme. For example, winterboard themes could not work, some icons do not dim. Now, here is the way to fix them. If you install themes with iSpirit, do not have to do these.