I hope this is enough detail......
More detailed step by step instructions:
Do these four steps for MergeMods and MergeKeys (Win7 and Vista) and make sure you get MergeKeys recognizing tables first:
1) Go to C:\Program Files (x86)\RunBetterPoker.com MergeKeys Beta
2) Right click the MergeMods(and MergeKeys) .exe and select Properties
3) Click the Compatibilty tab
4) Under Privilige Level, select Run this program as administrator
The modded files are in the Mods directory (created when MergeMods runs for the first time) in the path in step 1 above. You can change card backs, carpets (not on bad beat tables), the button, maybe tables, rails, inner rails. If you want to make single image tables, make all the rails, tables, shadows clear PNGs.
The first time it runs it downloads a couple files from my website to the Mods directory (includes a few custom carpets and all custom sounds). You can play with those and if you screw up too bad, delete them and they will re-download automatically when you restart MergeMods.
If you want to test before you attempt modding, turn on sounds and images, click Save and Continue, then open your Merge client, open a table and go to custom colors. You should have new sounds on startup. Go to carpets #s 3,4,6 and 7 are custom.
Leave MergeMods on until you close the lobby or your Merge client will re-download un-modded files at startup. This won’t screw up your files in the Mods directory, but it is quit annoying.
If the files weren’t downloaded correctly on startup there will be some issues (you’ll have no sound or no table image if this happens). This is absolutely, positively not permanent. If this happens you can re-download the files from here and move them to the Mods directory:
To modify files, simply open the zip files and replace anything you want with your renamed custom files. Then open your Mergeclient and see if it worked. Like I said above, some things appear not to be moddable (i.e card faces). If you screw anything up too badly, you can redownload the files by either deleting the zip files and restarting MergeMods or downloading them to the Mods directory manually.
Modded carpets should be 1280x915 pixels.
When you turn MergeMods off, all themes will revert to their original state.
If you use auto-login there are issues occasionally, so I suggest turning that off.